209977740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:234

約数の個数: 288

約数和(自身を含む): 786240000

約数和(自身を除く): 576262260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 179, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 343, 358, 380, 399, 420, 441, 490, 532, 537, 570, 588, 630, 665, 684, 686, 716, 735, 798, 855, 882, 895, 931, 980, 1029, 1074, 1140, 1197, 1253, 1260, 1330, 1372, 1470, 1596, 1611, 1710, 1715, 1764, 1790, 1862, 1995, 2058, 2148, 2205, 2394, 2506, 2660, 2685, 2793, 2940, 3087, 3222, 3401, 3420, 3430, 3580, 3724, 3759, 3990, 4116, 4410, 4655, 4788, 5012, 5145, 5370, 5586, 5985, 6174, 6265, 6444, 6517, 6802, 6860, 7518, 7980, 8055, 8379, 8771, 8820, 9310, 10203, 10290, 10740, 11172, 11277, 11970, 12348, 12530, 13034, 13604, 13965, 15036, 15435, 16110, 16758, 17005, 17542, 18620, 18795, 19551, 20406, 20580, 22554, 23807, 23940, 25060, 26068, 26313, 27930, 30609, 30870, 32220, 32585, 33516, 34010, 35084, 37590, 39102, 40812, 41895, 43855, 45108, 47614, 51015, 52626, 55860, 56385, 58653, 61218, 61397, 61740, 65170, 68020, 71421, 75180, 78204, 78939, 83790, 87710, 95228, 97755, 102030, 105252, 112770, 117306, 119035, 122436, 122794, 130340, 131565, 142842, 153045, 157878, 166649, 167580, 175420, 184191, 195510, 204060, 214263, 225540, 234612, 238070, 245588, 263130, 285684, 293265, 306090, 306985, 315756, 333298, 357105, 368382, 391020, 394695, 428526, 476140, 499947, 526260, 552573, 586530, 612180, 613970, 666596, 714210, 736764, 789390, 833245, 857052, 920955, 999894, 1071315, 1105146, 1166543, 1173060, 1227940, 1428420, 1499841, 1578780, 1666490, 1841910, 1999788, 2142630, 2210292, 2333086, 2499735, 2762865, 2999682, 3332980, 3499629, 3683820, 4285260, 4666172, 4999470, 5525730, 5832715, 5999364, 6999258, 7499205, 9998940, 10498887, 11051460, 11665430, 13998516, 14998410, 17498145, 20997774, 23330860, 29996820, 34996290, 41995548, 52494435, 69992580, 104988870, 209977740]

約数ペア:

[(1, 209977740), (2, 104988870), (3, 69992580), (4, 52494435), (5, 41995548), (6, 34996290), (7, 29996820), (9, 23330860), (10, 20997774), (12, 17498145), (14, 14998410), (15, 13998516), (18, 11665430), (19, 11051460), (20, 10498887), (21, 9998940), (28, 7499205), (30, 6999258), (35, 5999364), (36, 5832715), (38, 5525730), (42, 4999470), (45, 4666172), (49, 4285260), (57, 3683820), (60, 3499629), (63, 3332980), (70, 2999682), (76, 2762865), (84, 2499735), (90, 2333086), (95, 2210292), (98, 2142630), (105, 1999788), (114, 1841910), (126, 1666490), (133, 1578780), (140, 1499841), (147, 1428420), (171, 1227940), (179, 1173060), (180, 1166543), (190, 1105146), (196, 1071315), (210, 999894), (228, 920955), (245, 857052), (252, 833245), (266, 789390), (285, 736764), (294, 714210), (315, 666596), (342, 613970), (343, 612180), (358, 586530), (380, 552573), (399, 526260), (420, 499947), (441, 476140), (490, 428526), (532, 394695), (537, 391020), (570, 368382), (588, 357105), (630, 333298), (665, 315756), (684, 306985), (686, 306090), (716, 293265), (735, 285684), (798, 263130), (855, 245588), (882, 238070), (895, 234612), (931, 225540), (980, 214263), (1029, 204060), (1074, 195510), (1140, 184191), (1197, 175420), (1253, 167580), (1260, 166649), (1330, 157878), (1372, 153045), (1470, 142842), (1596, 131565), (1611, 130340), (1710, 122794), (1715, 122436), (1764, 119035), (1790, 117306), (1862, 112770), (1995, 105252), (2058, 102030), (2148, 97755), (2205, 95228), (2394, 87710), (2506, 83790), (2660, 78939), (2685, 78204), (2793, 75180), (2940, 71421), (3087, 68020), (3222, 65170), (3401, 61740), (3420, 61397), (3430, 61218), (3580, 58653), (3724, 56385), (3759, 55860), (3990, 52626), (4116, 51015), (4410, 47614), (4655, 45108), (4788, 43855), (5012, 41895), (5145, 40812), (5370, 39102), (5586, 37590), (5985, 35084), (6174, 34010), (6265, 33516), (6444, 32585), (6517, 32220), (6802, 30870), (6860, 30609), (7518, 27930), (7980, 26313), (8055, 26068), (8379, 25060), (8771, 23940), (8820, 23807), (9310, 22554), (10203, 20580), (10290, 20406), (10740, 19551), (11172, 18795), (11277, 18620), (11970, 17542), (12348, 17005), (12530, 16758), (13034, 16110), (13604, 15435), (13965, 15036)]