64439375

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 80

約数和(自身を含む): 109165056

約数和(自身を除く): 44725681

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 103, 125, 143, 175, 275, 325, 385, 455, 515, 625, 715, 721, 875, 1001, 1133, 1339, 1375, 1625, 1925, 2275, 2575, 3575, 3605, 4375, 5005, 5665, 6695, 6875, 7931, 8125, 9373, 9625, 11375, 12875, 14729, 17875, 18025, 25025, 28325, 33475, 39655, 46865, 48125, 56875, 64375, 73645, 89375, 90125, 103103, 125125, 141625, 167375, 198275, 234325, 368225, 450625, 515515, 625625, 708125, 836875, 991375, 1171625, 1841125, 2577575, 4956875, 5858125, 9205625, 12887875, 64439375]

約数ペア:

[(1, 64439375), (5, 12887875), (7, 9205625), (11, 5858125), (13, 4956875), (25, 2577575), (35, 1841125), (55, 1171625), (65, 991375), (77, 836875), (91, 708125), (103, 625625), (125, 515515), (143, 450625), (175, 368225), (275, 234325), (325, 198275), (385, 167375), (455, 141625), (515, 125125), (625, 103103), (715, 90125), (721, 89375), (875, 73645), (1001, 64375), (1133, 56875), (1339, 48125), (1375, 46865), (1625, 39655), (1925, 33475), (2275, 28325), (2575, 25025), (3575, 18025), (3605, 17875), (4375, 14729), (5005, 12875), (5665, 11375), (6695, 9625), (6875, 9373), (7931, 8125)]