64893280

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1697}}^1$

素因数の和:1951

約数の個数: 48

約数和(自身を含む): 154042560

約数和(自身を除く): 89149280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1697, 1912, 2390, 3394, 3824, 4780, 6788, 7648, 8485, 9560, 13576, 16970, 19120, 27152, 33940, 38240, 54304, 67880, 135760, 271520, 405583, 811166, 1622332, 2027915, 3244664, 4055830, 6489328, 8111660, 12978656, 16223320, 32446640, 64893280]

約数ペア:

[(1, 64893280), (2, 32446640), (4, 16223320), (5, 12978656), (8, 8111660), (10, 6489328), (16, 4055830), (20, 3244664), (32, 2027915), (40, 1622332), (80, 811166), (160, 405583), (239, 271520), (478, 135760), (956, 67880), (1195, 54304), (1697, 38240), (1912, 33940), (2390, 27152), (3394, 19120), (3824, 16970), (4780, 13576), (6788, 9560), (7648, 8485)]