64166720

素因数分解:

$2^6\times 5^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1095

約数の個数: 56

約数和(自身を含む): 153619200

約数和(自身を除く): 89452480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 239, 320, 478, 839, 956, 1195, 1678, 1912, 2390, 3356, 3824, 4195, 4780, 6712, 7648, 8390, 9560, 13424, 15296, 16780, 19120, 26848, 33560, 38240, 53696, 67120, 76480, 134240, 200521, 268480, 401042, 802084, 1002605, 1604168, 2005210, 3208336, 4010420, 6416672, 8020840, 12833344, 16041680, 32083360, 64166720]

約数ペア:

[(1, 64166720), (2, 32083360), (4, 16041680), (5, 12833344), (8, 8020840), (10, 6416672), (16, 4010420), (20, 3208336), (32, 2005210), (40, 1604168), (64, 1002605), (80, 802084), (160, 401042), (239, 268480), (320, 200521), (478, 134240), (839, 76480), (956, 67120), (1195, 53696), (1678, 38240), (1912, 33560), (2390, 26848), (3356, 19120), (3824, 16780), (4195, 15296), (4780, 13424), (6712, 9560), (7648, 8390)]