64239760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3296

約数の個数: 80

約数和(自身を含む): 169364160

約数和(自身を除く): 105124400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3251, 3952, 4940, 6502, 9880, 13004, 16255, 19760, 26008, 32510, 42263, 52016, 61769, 65020, 84526, 123538, 130040, 169052, 211315, 247076, 260080, 308845, 338104, 422630, 494152, 617690, 676208, 802997, 845260, 988304, 1235380, 1605994, 1690520, 2470760, 3211988, 3381040, 4014985, 4941520, 6423976, 8029970, 12847952, 16059940, 32119880, 64239760]

約数ペア:

[(1, 64239760), (2, 32119880), (4, 16059940), (5, 12847952), (8, 8029970), (10, 6423976), (13, 4941520), (16, 4014985), (19, 3381040), (20, 3211988), (26, 2470760), (38, 1690520), (40, 1605994), (52, 1235380), (65, 988304), (76, 845260), (80, 802997), (95, 676208), (104, 617690), (130, 494152), (152, 422630), (190, 338104), (208, 308845), (247, 260080), (260, 247076), (304, 211315), (380, 169052), (494, 130040), (520, 123538), (760, 84526), (988, 65020), (1040, 61769), (1235, 52016), (1520, 42263), (1976, 32510), (2470, 26008), (3251, 19760), (3952, 16255), (4940, 13004), (6502, 9880)]