64729520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5821}}^1$

素因数の和:5973

約数の個数: 40

約数和(自身を含む): 151604880

約数和(自身を除く): 86875360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 5821, 11120, 11642, 23284, 29105, 46568, 58210, 93136, 116420, 232840, 465680, 809119, 1618238, 3236476, 4045595, 6472952, 8091190, 12945904, 16182380, 32364760, 64729520]

約数ペア:

[(1, 64729520), (2, 32364760), (4, 16182380), (5, 12945904), (8, 8091190), (10, 6472952), (16, 4045595), (20, 3236476), (40, 1618238), (80, 809119), (139, 465680), (278, 232840), (556, 116420), (695, 93136), (1112, 58210), (1390, 46568), (2224, 29105), (2780, 23284), (5560, 11642), (5821, 11120)]