15865520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{149}}^1$

素因数の和:195

約数の個数: 80

約数和(自身を含む): 40845600

約数和(自身を除く): 24980080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 149, 176, 220, 242, 298, 440, 484, 596, 605, 745, 880, 968, 1192, 1210, 1331, 1490, 1639, 1936, 2384, 2420, 2662, 2980, 3278, 4840, 5324, 5960, 6556, 6655, 8195, 9680, 10648, 11920, 13112, 13310, 16390, 18029, 21296, 26224, 26620, 32780, 36058, 53240, 65560, 72116, 90145, 106480, 131120, 144232, 180290, 198319, 288464, 360580, 396638, 721160, 793276, 991595, 1442320, 1586552, 1983190, 3173104, 3966380, 7932760, 15865520]

約数ペア:

[(1, 15865520), (2, 7932760), (4, 3966380), (5, 3173104), (8, 1983190), (10, 1586552), (11, 1442320), (16, 991595), (20, 793276), (22, 721160), (40, 396638), (44, 360580), (55, 288464), (80, 198319), (88, 180290), (110, 144232), (121, 131120), (149, 106480), (176, 90145), (220, 72116), (242, 65560), (298, 53240), (440, 36058), (484, 32780), (596, 26620), (605, 26224), (745, 21296), (880, 18029), (968, 16390), (1192, 13310), (1210, 13112), (1331, 11920), (1490, 10648), (1639, 9680), (1936, 8195), (2384, 6655), (2420, 6556), (2662, 5960), (2980, 5324), (3278, 4840)]