25520440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1871}}^1$

素因数の和:1924

約数の個数: 64

約数和(自身を含む): 64696320

約数和(自身を除く): 39175880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 1871, 2728, 3410, 3742, 6820, 7484, 9355, 13640, 14968, 18710, 20581, 37420, 41162, 58001, 74840, 82324, 102905, 116002, 164648, 205810, 232004, 290005, 411620, 464008, 580010, 638011, 823240, 1160020, 1276022, 2320040, 2552044, 3190055, 5104088, 6380110, 12760220, 25520440]

約数ペア:

[(1, 25520440), (2, 12760220), (4, 6380110), (5, 5104088), (8, 3190055), (10, 2552044), (11, 2320040), (20, 1276022), (22, 1160020), (31, 823240), (40, 638011), (44, 580010), (55, 464008), (62, 411620), (88, 290005), (110, 232004), (124, 205810), (155, 164648), (220, 116002), (248, 102905), (310, 82324), (341, 74840), (440, 58001), (620, 41162), (682, 37420), (1240, 20581), (1364, 18710), (1705, 14968), (1871, 13640), (2728, 9355), (3410, 7484), (3742, 6820)]