15963860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 36892800

約数和(自身を除く): 20928940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 487, 596, 745, 974, 1490, 1639, 1948, 2435, 2980, 3278, 4870, 5357, 6556, 8195, 9740, 10714, 16390, 21428, 26785, 32780, 53570, 72563, 107140, 145126, 290252, 362815, 725630, 798193, 1451260, 1596386, 3192772, 3990965, 7981930, 15963860]

約数ペア:

[(1, 15963860), (2, 7981930), (4, 3990965), (5, 3192772), (10, 1596386), (11, 1451260), (20, 798193), (22, 725630), (44, 362815), (55, 290252), (110, 145126), (149, 107140), (220, 72563), (298, 53570), (487, 32780), (596, 26785), (745, 21428), (974, 16390), (1490, 10714), (1639, 9740), (1948, 8195), (2435, 6556), (2980, 5357), (3278, 4870)]