28681380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:155

約数の個数: 288

約数和(自身を含む): 114476544

約数和(自身を除く): 85795164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 68, 70, 78, 84, 85, 90, 91, 102, 103, 105, 117, 119, 126, 130, 140, 153, 156, 170, 180, 182, 195, 204, 206, 210, 221, 234, 238, 252, 255, 260, 273, 306, 309, 315, 340, 357, 364, 390, 412, 420, 442, 455, 468, 476, 510, 515, 546, 585, 595, 612, 618, 630, 663, 714, 721, 765, 780, 819, 884, 910, 927, 1020, 1030, 1071, 1092, 1105, 1170, 1190, 1236, 1260, 1326, 1339, 1365, 1428, 1442, 1530, 1545, 1547, 1638, 1751, 1785, 1820, 1854, 1989, 2060, 2142, 2163, 2210, 2340, 2380, 2652, 2678, 2730, 2884, 3060, 3090, 3094, 3276, 3315, 3502, 3570, 3605, 3708, 3978, 4017, 4095, 4284, 4326, 4420, 4635, 4641, 5253, 5355, 5356, 5460, 6180, 6188, 6489, 6630, 6695, 7004, 7140, 7210, 7735, 7956, 8034, 8190, 8652, 8755, 9270, 9282, 9373, 9945, 10506, 10710, 10815, 12051, 12257, 12978, 13260, 13390, 13923, 14420, 15470, 15759, 16068, 16380, 17510, 18540, 18564, 18746, 19890, 20085, 21012, 21420, 21630, 22763, 23205, 24102, 24514, 25956, 26265, 26780, 27846, 28119, 30940, 31518, 32445, 35020, 36771, 37492, 39780, 40170, 43260, 45526, 46410, 46865, 48204, 49028, 52530, 55692, 56238, 60255, 61285, 63036, 64890, 68289, 69615, 73542, 78795, 80340, 84357, 91052, 92820, 93730, 105060, 110313, 112476, 113815, 120510, 122570, 129780, 136578, 139230, 140595, 147084, 157590, 159341, 168714, 183855, 187460, 204867, 220626, 227630, 241020, 245140, 273156, 278460, 281190, 315180, 318682, 337428, 341445, 367710, 409734, 421785, 441252, 455260, 478023, 551565, 562380, 637364, 682890, 735420, 796705, 819468, 843570, 956046, 1024335, 1103130, 1365780, 1434069, 1593410, 1687140, 1912092, 2048670, 2206260, 2390115, 2868138, 3186820, 4097340, 4780230, 5736276, 7170345, 9560460, 14340690, 28681380]

約数ペア:

[(1, 28681380), (2, 14340690), (3, 9560460), (4, 7170345), (5, 5736276), (6, 4780230), (7, 4097340), (9, 3186820), (10, 2868138), (12, 2390115), (13, 2206260), (14, 2048670), (15, 1912092), (17, 1687140), (18, 1593410), (20, 1434069), (21, 1365780), (26, 1103130), (28, 1024335), (30, 956046), (34, 843570), (35, 819468), (36, 796705), (39, 735420), (42, 682890), (45, 637364), (51, 562380), (52, 551565), (60, 478023), (63, 455260), (65, 441252), (68, 421785), (70, 409734), (78, 367710), (84, 341445), (85, 337428), (90, 318682), (91, 315180), (102, 281190), (103, 278460), (105, 273156), (117, 245140), (119, 241020), (126, 227630), (130, 220626), (140, 204867), (153, 187460), (156, 183855), (170, 168714), (180, 159341), (182, 157590), (195, 147084), (204, 140595), (206, 139230), (210, 136578), (221, 129780), (234, 122570), (238, 120510), (252, 113815), (255, 112476), (260, 110313), (273, 105060), (306, 93730), (309, 92820), (315, 91052), (340, 84357), (357, 80340), (364, 78795), (390, 73542), (412, 69615), (420, 68289), (442, 64890), (455, 63036), (468, 61285), (476, 60255), (510, 56238), (515, 55692), (546, 52530), (585, 49028), (595, 48204), (612, 46865), (618, 46410), (630, 45526), (663, 43260), (714, 40170), (721, 39780), (765, 37492), (780, 36771), (819, 35020), (884, 32445), (910, 31518), (927, 30940), (1020, 28119), (1030, 27846), (1071, 26780), (1092, 26265), (1105, 25956), (1170, 24514), (1190, 24102), (1236, 23205), (1260, 22763), (1326, 21630), (1339, 21420), (1365, 21012), (1428, 20085), (1442, 19890), (1530, 18746), (1545, 18564), (1547, 18540), (1638, 17510), (1751, 16380), (1785, 16068), (1820, 15759), (1854, 15470), (1989, 14420), (2060, 13923), (2142, 13390), (2163, 13260), (2210, 12978), (2340, 12257), (2380, 12051), (2652, 10815), (2678, 10710), (2730, 10506), (2884, 9945), (3060, 9373), (3090, 9282), (3094, 9270), (3276, 8755), (3315, 8652), (3502, 8190), (3570, 8034), (3605, 7956), (3708, 7735), (3978, 7210), (4017, 7140), (4095, 7004), (4284, 6695), (4326, 6630), (4420, 6489), (4635, 6188), (4641, 6180), (5253, 5460), (5355, 5356)]