20869680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6689}}^1$

素因数の和:6718

約数の個数: 80

約数和(自身を含む): 69683040

約数和(自身を除く): 48813360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6689, 13378, 20067, 26756, 33445, 40134, 53512, 66890, 80268, 86957, 100335, 107024, 133780, 160536, 173914, 200670, 260871, 267560, 321072, 347828, 401340, 434785, 521742, 535120, 695656, 802680, 869570, 1043484, 1304355, 1391312, 1605360, 1739140, 2086968, 2608710, 3478280, 4173936, 5217420, 6956560, 10434840, 20869680]

約数ペア:

[(1, 20869680), (2, 10434840), (3, 6956560), (4, 5217420), (5, 4173936), (6, 3478280), (8, 2608710), (10, 2086968), (12, 1739140), (13, 1605360), (15, 1391312), (16, 1304355), (20, 1043484), (24, 869570), (26, 802680), (30, 695656), (39, 535120), (40, 521742), (48, 434785), (52, 401340), (60, 347828), (65, 321072), (78, 267560), (80, 260871), (104, 200670), (120, 173914), (130, 160536), (156, 133780), (195, 107024), (208, 100335), (240, 86957), (260, 80268), (312, 66890), (390, 53512), (520, 40134), (624, 33445), (780, 26756), (1040, 20067), (1560, 13378), (3120, 6689)]