2720740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 6350400

約数和(自身を除く): 3629660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 149, 166, 220, 298, 332, 415, 596, 745, 830, 913, 1490, 1639, 1660, 1826, 2980, 3278, 3652, 4565, 6556, 8195, 9130, 12367, 16390, 18260, 24734, 32780, 49468, 61835, 123670, 136037, 247340, 272074, 544148, 680185, 1360370, 2720740]

約数ペア:

[(1, 2720740), (2, 1360370), (4, 680185), (5, 544148), (10, 272074), (11, 247340), (20, 136037), (22, 123670), (44, 61835), (55, 49468), (83, 32780), (110, 24734), (149, 18260), (166, 16390), (220, 12367), (298, 9130), (332, 8195), (415, 6556), (596, 4565), (745, 3652), (830, 3278), (913, 2980), (1490, 1826), (1639, 1660)]