280724840

素因数分解:

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

素因数の和:1935

約数の個数: 96

約数和(自身を含む): 717050880

約数和(自身を除く): 436326040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 220, 242, 248, 310, 341, 440, 484, 605, 620, 682, 968, 1210, 1240, 1364, 1705, 1871, 2420, 2728, 3410, 3742, 3751, 4840, 6820, 7484, 7502, 9355, 13640, 14968, 15004, 18710, 18755, 20581, 30008, 37420, 37510, 41162, 58001, 74840, 75020, 82324, 102905, 116002, 150040, 164648, 205810, 226391, 232004, 290005, 411620, 452782, 464008, 580010, 638011, 823240, 905564, 1131955, 1160020, 1276022, 1811128, 2263910, 2320040, 2552044, 3190055, 4527820, 5104088, 6380110, 7018121, 9055640, 12760220, 14036242, 25520440, 28072484, 35090605, 56144968, 70181210, 140362420, 280724840]

約数ペア:

[(1, 280724840), (2, 140362420), (4, 70181210), (5, 56144968), (8, 35090605), (10, 28072484), (11, 25520440), (20, 14036242), (22, 12760220), (31, 9055640), (40, 7018121), (44, 6380110), (55, 5104088), (62, 4527820), (88, 3190055), (110, 2552044), (121, 2320040), (124, 2263910), (155, 1811128), (220, 1276022), (242, 1160020), (248, 1131955), (310, 905564), (341, 823240), (440, 638011), (484, 580010), (605, 464008), (620, 452782), (682, 411620), (968, 290005), (1210, 232004), (1240, 226391), (1364, 205810), (1705, 164648), (1871, 150040), (2420, 116002), (2728, 102905), (3410, 82324), (3742, 75020), (3751, 74840), (4840, 58001), (6820, 41162), (7484, 37510), (7502, 37420), (9355, 30008), (13640, 20581), (14968, 18755), (15004, 18710)]