19933680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6389}}^1$

素因数の和:6418

約数の個数: 80

約数和(自身を含む): 66558240

約数和(自身を除く): 46624560

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, 6389, 12778, 19167, 25556, 31945, 38334, 51112, 63890, 76668, 83057, 95835, 102224, 127780, 153336, 166114, 191670, 249171, 255560, 306672, 332228, 383340, 415285, 498342, 511120, 664456, 766680, 830570, 996684, 1245855, 1328912, 1533360, 1661140, 1993368, 2491710, 3322280, 3986736, 4983420, 6644560, 9966840, 19933680]

約数ペア:

[(1, 19933680), (2, 9966840), (3, 6644560), (4, 4983420), (5, 3986736), (6, 3322280), (8, 2491710), (10, 1993368), (12, 1661140), (13, 1533360), (15, 1328912), (16, 1245855), (20, 996684), (24, 830570), (26, 766680), (30, 664456), (39, 511120), (40, 498342), (48, 415285), (52, 383340), (60, 332228), (65, 306672), (78, 255560), (80, 249171), (104, 191670), (120, 166114), (130, 153336), (156, 127780), (195, 102224), (208, 95835), (240, 83057), (260, 76668), (312, 63890), (390, 51112), (520, 38334), (624, 31945), (780, 25556), (1040, 19167), (1560, 12778), (3120, 6389)]