290647940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2243}}^1$

素因数の和:2313

約数の個数: 96

約数和(自身を含む): 723824640

約数和(自身を除く): 433176700

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 31, 38, 44, 55, 62, 76, 95, 110, 124, 155, 190, 209, 220, 310, 341, 380, 418, 589, 620, 682, 836, 1045, 1178, 1364, 1705, 2090, 2243, 2356, 2945, 3410, 4180, 4486, 5890, 6479, 6820, 8972, 11215, 11780, 12958, 22430, 24673, 25916, 32395, 42617, 44860, 49346, 64790, 69533, 85234, 98692, 123365, 129580, 139066, 170468, 213085, 246730, 278132, 347665, 426170, 468787, 493460, 695330, 764863, 852340, 937574, 1321127, 1390660, 1529726, 1875148, 2343935, 2642254, 3059452, 3824315, 4687870, 5284508, 6605635, 7648630, 9375740, 13211270, 14532397, 15297260, 26422540, 29064794, 58129588, 72661985, 145323970, 290647940]

約数ペア:

[(1, 290647940), (2, 145323970), (4, 72661985), (5, 58129588), (10, 29064794), (11, 26422540), (19, 15297260), (20, 14532397), (22, 13211270), (31, 9375740), (38, 7648630), (44, 6605635), (55, 5284508), (62, 4687870), (76, 3824315), (95, 3059452), (110, 2642254), (124, 2343935), (155, 1875148), (190, 1529726), (209, 1390660), (220, 1321127), (310, 937574), (341, 852340), (380, 764863), (418, 695330), (589, 493460), (620, 468787), (682, 426170), (836, 347665), (1045, 278132), (1178, 246730), (1364, 213085), (1705, 170468), (2090, 139066), (2243, 129580), (2356, 123365), (2945, 98692), (3410, 85234), (4180, 69533), (4486, 64790), (5890, 49346), (6479, 44860), (6820, 42617), (8972, 32395), (11215, 25916), (11780, 24673), (12958, 22430)]