64881520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4337}}^1$

素因数の和:4378

約数の個数: 80

約数和(自身を含む): 174283488

約数和(自身を除く): 109401968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 4337, 7480, 8674, 14960, 17348, 21685, 34696, 43370, 47707, 69392, 73729, 86740, 95414, 147458, 173480, 190828, 238535, 294916, 346960, 368645, 381656, 477070, 589832, 737290, 763312, 811019, 954140, 1179664, 1474580, 1622038, 1908280, 2949160, 3244076, 3816560, 4055095, 5898320, 6488152, 8110190, 12976304, 16220380, 32440760, 64881520]

約数ペア:

[(1, 64881520), (2, 32440760), (4, 16220380), (5, 12976304), (8, 8110190), (10, 6488152), (11, 5898320), (16, 4055095), (17, 3816560), (20, 3244076), (22, 2949160), (34, 1908280), (40, 1622038), (44, 1474580), (55, 1179664), (68, 954140), (80, 811019), (85, 763312), (88, 737290), (110, 589832), (136, 477070), (170, 381656), (176, 368645), (187, 346960), (220, 294916), (272, 238535), (340, 190828), (374, 173480), (440, 147458), (680, 95414), (748, 86740), (880, 73729), (935, 69392), (1360, 47707), (1496, 43370), (1870, 34696), (2992, 21685), (3740, 17348), (4337, 14960), (7480, 8674)]