28237860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:402

約数の個数: 144

約数和(自身を含む): 99555456

約数和(自身を除く): 71317596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 307, 315, 365, 420, 438, 511, 614, 630, 657, 730, 876, 921, 1022, 1095, 1228, 1260, 1314, 1460, 1533, 1535, 1842, 2044, 2149, 2190, 2555, 2628, 2763, 3066, 3070, 3285, 3684, 4298, 4380, 4599, 4605, 5110, 5526, 6132, 6140, 6447, 6570, 7665, 8596, 9198, 9210, 10220, 10745, 11052, 12894, 13140, 13815, 15330, 18396, 18420, 19341, 21490, 22411, 22995, 25788, 27630, 30660, 32235, 38682, 42980, 44822, 45990, 55260, 64470, 67233, 77364, 89644, 91980, 96705, 112055, 128940, 134466, 156877, 193410, 201699, 224110, 268932, 313754, 336165, 386820, 403398, 448220, 470631, 627508, 672330, 784385, 806796, 941262, 1008495, 1344660, 1411893, 1568770, 1882524, 2016990, 2353155, 2823786, 3137540, 4033980, 4706310, 5647572, 7059465, 9412620, 14118930, 28237860]

約数ペア:

[(1, 28237860), (2, 14118930), (3, 9412620), (4, 7059465), (5, 5647572), (6, 4706310), (7, 4033980), (9, 3137540), (10, 2823786), (12, 2353155), (14, 2016990), (15, 1882524), (18, 1568770), (20, 1411893), (21, 1344660), (28, 1008495), (30, 941262), (35, 806796), (36, 784385), (42, 672330), (45, 627508), (60, 470631), (63, 448220), (70, 403398), (73, 386820), (84, 336165), (90, 313754), (105, 268932), (126, 224110), (140, 201699), (146, 193410), (180, 156877), (210, 134466), (219, 128940), (252, 112055), (292, 96705), (307, 91980), (315, 89644), (365, 77364), (420, 67233), (438, 64470), (511, 55260), (614, 45990), (630, 44822), (657, 42980), (730, 38682), (876, 32235), (921, 30660), (1022, 27630), (1095, 25788), (1228, 22995), (1260, 22411), (1314, 21490), (1460, 19341), (1533, 18420), (1535, 18396), (1842, 15330), (2044, 13815), (2149, 13140), (2190, 12894), (2555, 11052), (2628, 10745), (2763, 10220), (3066, 9210), (3070, 9198), (3285, 8596), (3684, 7665), (4298, 6570), (4380, 6447), (4599, 6140), (4605, 6132), (5110, 5526)]