20974200

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2689}}^1$

素因数の和:2721

約数の個数: 96

約数和(自身を含む): 70047600

約数和(自身を除く): 49073400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 195, 200, 260, 300, 312, 325, 390, 520, 600, 650, 780, 975, 1300, 1560, 1950, 2600, 2689, 3900, 5378, 7800, 8067, 10756, 13445, 16134, 21512, 26890, 32268, 34957, 40335, 53780, 64536, 67225, 69914, 80670, 104871, 107560, 134450, 139828, 161340, 174785, 201675, 209742, 268900, 279656, 322680, 349570, 403350, 419484, 524355, 537800, 699140, 806700, 838968, 873925, 1048710, 1398280, 1613400, 1747850, 2097420, 2621775, 3495700, 4194840, 5243550, 6991400, 10487100, 20974200]

約数ペア:

[(1, 20974200), (2, 10487100), (3, 6991400), (4, 5243550), (5, 4194840), (6, 3495700), (8, 2621775), (10, 2097420), (12, 1747850), (13, 1613400), (15, 1398280), (20, 1048710), (24, 873925), (25, 838968), (26, 806700), (30, 699140), (39, 537800), (40, 524355), (50, 419484), (52, 403350), (60, 349570), (65, 322680), (75, 279656), (78, 268900), (100, 209742), (104, 201675), (120, 174785), (130, 161340), (150, 139828), (156, 134450), (195, 107560), (200, 104871), (260, 80670), (300, 69914), (312, 67225), (325, 64536), (390, 53780), (520, 40335), (600, 34957), (650, 32268), (780, 26890), (975, 21512), (1300, 16134), (1560, 13445), (1950, 10756), (2600, 8067), (2689, 7800), (3900, 5378)]