19720260

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 240

約数和(自身を含む): 74156544

約数和(自身を除く): 54436284

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 37, 42, 45, 47, 54, 60, 63, 70, 74, 81, 84, 90, 94, 105, 108, 111, 126, 135, 140, 141, 148, 162, 180, 185, 188, 189, 210, 222, 235, 252, 259, 270, 282, 315, 324, 329, 333, 370, 378, 405, 420, 423, 444, 470, 518, 540, 555, 564, 567, 630, 658, 666, 705, 740, 756, 777, 810, 846, 940, 945, 987, 999, 1036, 1110, 1134, 1260, 1269, 1295, 1316, 1332, 1410, 1554, 1620, 1645, 1665, 1692, 1739, 1890, 1974, 1998, 2115, 2220, 2268, 2331, 2538, 2590, 2820, 2835, 2961, 2997, 3108, 3290, 3330, 3478, 3780, 3807, 3885, 3948, 3996, 4230, 4662, 4935, 4995, 5076, 5180, 5217, 5670, 5922, 5994, 6345, 6580, 6660, 6956, 6993, 7614, 7770, 8460, 8695, 8883, 9324, 9870, 9990, 10434, 11340, 11655, 11844, 11988, 12173, 12690, 13986, 14805, 14985, 15228, 15540, 15651, 17390, 17766, 19035, 19740, 19980, 20868, 20979, 23310, 24346, 25380, 26085, 26649, 27972, 29610, 29970, 31302, 34780, 34965, 35532, 36519, 38070, 41958, 44415, 46620, 46953, 48692, 52170, 53298, 59220, 59940, 60865, 62604, 69930, 73038, 76140, 78255, 83916, 88830, 93906, 104340, 104895, 106596, 109557, 121730, 133245, 139860, 140859, 146076, 156510, 177660, 182595, 187812, 209790, 219114, 234765, 243460, 266490, 281718, 313020, 328671, 365190, 419580, 438228, 469530, 532980, 547785, 563436, 657342, 704295, 730380, 939060, 986013, 1095570, 1314684, 1408590, 1643355, 1972026, 2191140, 2817180, 3286710, 3944052, 4930065, 6573420, 9860130, 19720260]

約数ペア:

[(1, 19720260), (2, 9860130), (3, 6573420), (4, 4930065), (5, 3944052), (6, 3286710), (7, 2817180), (9, 2191140), (10, 1972026), (12, 1643355), (14, 1408590), (15, 1314684), (18, 1095570), (20, 986013), (21, 939060), (27, 730380), (28, 704295), (30, 657342), (35, 563436), (36, 547785), (37, 532980), (42, 469530), (45, 438228), (47, 419580), (54, 365190), (60, 328671), (63, 313020), (70, 281718), (74, 266490), (81, 243460), (84, 234765), (90, 219114), (94, 209790), (105, 187812), (108, 182595), (111, 177660), (126, 156510), (135, 146076), (140, 140859), (141, 139860), (148, 133245), (162, 121730), (180, 109557), (185, 106596), (188, 104895), (189, 104340), (210, 93906), (222, 88830), (235, 83916), (252, 78255), (259, 76140), (270, 73038), (282, 69930), (315, 62604), (324, 60865), (329, 59940), (333, 59220), (370, 53298), (378, 52170), (405, 48692), (420, 46953), (423, 46620), (444, 44415), (470, 41958), (518, 38070), (540, 36519), (555, 35532), (564, 34965), (567, 34780), (630, 31302), (658, 29970), (666, 29610), (705, 27972), (740, 26649), (756, 26085), (777, 25380), (810, 24346), (846, 23310), (940, 20979), (945, 20868), (987, 19980), (999, 19740), (1036, 19035), (1110, 17766), (1134, 17390), (1260, 15651), (1269, 15540), (1295, 15228), (1316, 14985), (1332, 14805), (1410, 13986), (1554, 12690), (1620, 12173), (1645, 11988), (1665, 11844), (1692, 11655), (1739, 11340), (1890, 10434), (1974, 9990), (1998, 9870), (2115, 9324), (2220, 8883), (2268, 8695), (2331, 8460), (2538, 7770), (2590, 7614), (2820, 6993), (2835, 6956), (2961, 6660), (2997, 6580), (3108, 6345), (3290, 5994), (3330, 5922), (3478, 5670), (3780, 5217), (3807, 5180), (3885, 5076), (3948, 4995), (3996, 4935), (4230, 4662)]