20290820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 46872000

約数和(自身を除く): 26581180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 619, 745, 1238, 1490, 1639, 2476, 2980, 3095, 3278, 6190, 6556, 6809, 8195, 12380, 13618, 16390, 27236, 32780, 34045, 68090, 92231, 136180, 184462, 368924, 461155, 922310, 1014541, 1844620, 2029082, 4058164, 5072705, 10145410, 20290820]

約数ペア:

[(1, 20290820), (2, 10145410), (4, 5072705), (5, 4058164), (10, 2029082), (11, 1844620), (20, 1014541), (22, 922310), (44, 461155), (55, 368924), (110, 184462), (149, 136180), (220, 92231), (298, 68090), (596, 34045), (619, 32780), (745, 27236), (1238, 16390), (1490, 13618), (1639, 12380), (2476, 8195), (2980, 6809), (3095, 6556), (3278, 6190)]