28051380

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 102735360

約数和(自身を除く): 74683980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 41, 42, 45, 54, 60, 63, 70, 82, 84, 90, 105, 108, 123, 126, 135, 140, 164, 180, 181, 189, 205, 210, 246, 252, 270, 287, 315, 362, 369, 378, 410, 420, 492, 540, 543, 574, 615, 630, 724, 738, 756, 820, 861, 905, 945, 1086, 1107, 1148, 1230, 1260, 1267, 1435, 1476, 1629, 1722, 1810, 1845, 1890, 2172, 2214, 2460, 2534, 2583, 2715, 2870, 3258, 3444, 3620, 3690, 3780, 3801, 4305, 4428, 4887, 5068, 5166, 5430, 5535, 5740, 6335, 6516, 7380, 7421, 7602, 7749, 8145, 8610, 9774, 10332, 10860, 11070, 11403, 12670, 12915, 14842, 15204, 15498, 16290, 17220, 19005, 19548, 22140, 22263, 22806, 24435, 25340, 25830, 29684, 30996, 32580, 34209, 37105, 38010, 38745, 44526, 45612, 48870, 51660, 51947, 57015, 66789, 68418, 74210, 76020, 77490, 89052, 97740, 103894, 111315, 114030, 133578, 136836, 148420, 154980, 155841, 171045, 200367, 207788, 222630, 228060, 259735, 267156, 311682, 333945, 342090, 400734, 445260, 467523, 519470, 623364, 667890, 684180, 779205, 801468, 935046, 1001835, 1038940, 1335780, 1402569, 1558410, 1870092, 2003670, 2337615, 2805138, 3116820, 4007340, 4675230, 5610276, 7012845, 9350460, 14025690, 28051380]

約数ペア:

[(1, 28051380), (2, 14025690), (3, 9350460), (4, 7012845), (5, 5610276), (6, 4675230), (7, 4007340), (9, 3116820), (10, 2805138), (12, 2337615), (14, 2003670), (15, 1870092), (18, 1558410), (20, 1402569), (21, 1335780), (27, 1038940), (28, 1001835), (30, 935046), (35, 801468), (36, 779205), (41, 684180), (42, 667890), (45, 623364), (54, 519470), (60, 467523), (63, 445260), (70, 400734), (82, 342090), (84, 333945), (90, 311682), (105, 267156), (108, 259735), (123, 228060), (126, 222630), (135, 207788), (140, 200367), (164, 171045), (180, 155841), (181, 154980), (189, 148420), (205, 136836), (210, 133578), (246, 114030), (252, 111315), (270, 103894), (287, 97740), (315, 89052), (362, 77490), (369, 76020), (378, 74210), (410, 68418), (420, 66789), (492, 57015), (540, 51947), (543, 51660), (574, 48870), (615, 45612), (630, 44526), (724, 38745), (738, 38010), (756, 37105), (820, 34209), (861, 32580), (905, 30996), (945, 29684), (1086, 25830), (1107, 25340), (1148, 24435), (1230, 22806), (1260, 22263), (1267, 22140), (1435, 19548), (1476, 19005), (1629, 17220), (1722, 16290), (1810, 15498), (1845, 15204), (1890, 14842), (2172, 12915), (2214, 12670), (2460, 11403), (2534, 11070), (2583, 10860), (2715, 10332), (2870, 9774), (3258, 8610), (3444, 8145), (3620, 7749), (3690, 7602), (3780, 7421), (3801, 7380), (4305, 6516), (4428, 6335), (4887, 5740), (5068, 5535), (5166, 5430)]