18505240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1873}}^1$

素因数の和:1916

約数の個数: 64

約数和(自身を含む): 47224800

約数和(自身を除く): 28719560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1873, 1976, 2470, 3746, 4940, 7492, 9365, 9880, 14984, 18730, 24349, 35587, 37460, 48698, 71174, 74920, 97396, 121745, 142348, 177935, 194792, 243490, 284696, 355870, 462631, 486980, 711740, 925262, 973960, 1423480, 1850524, 2313155, 3701048, 4626310, 9252620, 18505240]

約数ペア:

[(1, 18505240), (2, 9252620), (4, 4626310), (5, 3701048), (8, 2313155), (10, 1850524), (13, 1423480), (19, 973960), (20, 925262), (26, 711740), (38, 486980), (40, 462631), (52, 355870), (65, 284696), (76, 243490), (95, 194792), (104, 177935), (130, 142348), (152, 121745), (190, 97396), (247, 74920), (260, 71174), (380, 48698), (494, 37460), (520, 35587), (760, 24349), (988, 18730), (1235, 14984), (1873, 9880), (1976, 9365), (2470, 7492), (3746, 4940)]