78170840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 199946880

約数和(自身を除く): 121776040

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, 521, 605, 620, 682, 968, 1042, 1210, 1240, 1364, 1705, 2084, 2420, 2605, 2728, 3410, 3751, 4168, 4840, 5210, 5731, 6820, 7502, 10420, 11462, 13640, 15004, 16151, 18755, 20840, 22924, 28655, 30008, 32302, 37510, 45848, 57310, 63041, 64604, 75020, 80755, 114620, 126082, 129208, 150040, 161510, 177661, 229240, 252164, 315205, 323020, 355322, 504328, 630410, 646040, 710644, 888305, 1260820, 1421288, 1776610, 1954271, 2521640, 3553220, 3908542, 7106440, 7817084, 9771355, 15634168, 19542710, 39085420, 78170840]

約数ペア:

[(1, 78170840), (2, 39085420), (4, 19542710), (5, 15634168), (8, 9771355), (10, 7817084), (11, 7106440), (20, 3908542), (22, 3553220), (31, 2521640), (40, 1954271), (44, 1776610), (55, 1421288), (62, 1260820), (88, 888305), (110, 710644), (121, 646040), (124, 630410), (155, 504328), (220, 355322), (242, 323020), (248, 315205), (310, 252164), (341, 229240), (440, 177661), (484, 161510), (521, 150040), (605, 129208), (620, 126082), (682, 114620), (968, 80755), (1042, 75020), (1210, 64604), (1240, 63041), (1364, 57310), (1705, 45848), (2084, 37510), (2420, 32302), (2605, 30008), (2728, 28655), (3410, 22924), (3751, 20840), (4168, 18755), (4840, 16151), (5210, 15004), (5731, 13640), (6820, 11462), (7502, 10420)]