28020360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{977}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 84499200

約数和(自身を除く): 56478840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 977, 1195, 1434, 1912, 1954, 2390, 2868, 2931, 3585, 3908, 4780, 4885, 5736, 5862, 7170, 7816, 9560, 9770, 11724, 14340, 14655, 19540, 23448, 28680, 29310, 39080, 58620, 117240, 233503, 467006, 700509, 934012, 1167515, 1401018, 1868024, 2335030, 2802036, 3502545, 4670060, 5604072, 7005090, 9340120, 14010180, 28020360]

約数ペア:

[(1, 28020360), (2, 14010180), (3, 9340120), (4, 7005090), (5, 5604072), (6, 4670060), (8, 3502545), (10, 2802036), (12, 2335030), (15, 1868024), (20, 1401018), (24, 1167515), (30, 934012), (40, 700509), (60, 467006), (120, 233503), (239, 117240), (478, 58620), (717, 39080), (956, 29310), (977, 28680), (1195, 23448), (1434, 19540), (1912, 14655), (1954, 14340), (2390, 11724), (2868, 9770), (2931, 9560), (3585, 7816), (3908, 7170), (4780, 5862), (4885, 5736)]