87426980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{12109}}^1$

素因数の和:12156

約数の個数: 36

約数和(自身を含む): 193784220

約数和(自身を除く): 106357240

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 12109, 24218, 48436, 60545, 121090, 230071, 242180, 460142, 920284, 1150355, 2300710, 4371349, 4601420, 8742698, 17485396, 21856745, 43713490, 87426980]

約数ペア:

[(1, 87426980), (2, 43713490), (4, 21856745), (5, 17485396), (10, 8742698), (19, 4601420), (20, 4371349), (38, 2300710), (76, 1150355), (95, 920284), (190, 460142), (361, 242180), (380, 230071), (722, 121090), (1444, 60545), (1805, 48436), (3610, 24218), (7220, 12109)]