64104640

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1229}}^1$

素因数の和:1409

約数の個数: 56

約数和(自身を含む): 153710640

約数和(自身を除く): 89606000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 652, 815, 1229, 1304, 1630, 2458, 2608, 3260, 4916, 5216, 6145, 6520, 9832, 10432, 12290, 13040, 19664, 24580, 26080, 39328, 49160, 52160, 78656, 98320, 196640, 200327, 393280, 400654, 801308, 1001635, 1602616, 2003270, 3205232, 4006540, 6410464, 8013080, 12820928, 16026160, 32052320, 64104640]

約数ペア:

[(1, 64104640), (2, 32052320), (4, 16026160), (5, 12820928), (8, 8013080), (10, 6410464), (16, 4006540), (20, 3205232), (32, 2003270), (40, 1602616), (64, 1001635), (80, 801308), (160, 400654), (163, 393280), (320, 200327), (326, 196640), (652, 98320), (815, 78656), (1229, 52160), (1304, 49160), (1630, 39328), (2458, 26080), (2608, 24580), (3260, 19664), (4916, 13040), (5216, 12290), (6145, 10432), (6520, 9832)]