64736880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20749}}^1$

素因数の和:20778

約数の個数: 80

約数和(自身を含む): 216132000

約数和(自身を除く): 151395120

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, 20749, 41498, 62247, 82996, 103745, 124494, 165992, 207490, 248988, 269737, 311235, 331984, 414980, 497976, 539474, 622470, 809211, 829960, 995952, 1078948, 1244940, 1348685, 1618422, 1659920, 2157896, 2489880, 2697370, 3236844, 4046055, 4315792, 4979760, 5394740, 6473688, 8092110, 10789480, 12947376, 16184220, 21578960, 32368440, 64736880]

約数ペア:

[(1, 64736880), (2, 32368440), (3, 21578960), (4, 16184220), (5, 12947376), (6, 10789480), (8, 8092110), (10, 6473688), (12, 5394740), (13, 4979760), (15, 4315792), (16, 4046055), (20, 3236844), (24, 2697370), (26, 2489880), (30, 2157896), (39, 1659920), (40, 1618422), (48, 1348685), (52, 1244940), (60, 1078948), (65, 995952), (78, 829960), (80, 809211), (104, 622470), (120, 539474), (130, 497976), (156, 414980), (195, 331984), (208, 311235), (240, 269737), (260, 248988), (312, 207490), (390, 165992), (520, 124494), (624, 103745), (780, 82996), (1040, 62247), (1560, 41498), (3120, 20749)]