80495940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191657}}^1$

素因数の和:191676

約数の個数: 48

約数和(自身を含む): 257588352

約数和(自身を除く): 177092412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191657, 383314, 574971, 766628, 958285, 1149942, 1341599, 1916570, 2299884, 2683198, 2874855, 3833140, 4024797, 5366396, 5749710, 6707995, 8049594, 11499420, 13415990, 16099188, 20123985, 26831980, 40247970, 80495940]

約数ペア:

[(1, 80495940), (2, 40247970), (3, 26831980), (4, 20123985), (5, 16099188), (6, 13415990), (7, 11499420), (10, 8049594), (12, 6707995), (14, 5749710), (15, 5366396), (20, 4024797), (21, 3833140), (28, 2874855), (30, 2683198), (35, 2299884), (42, 1916570), (60, 1341599), (70, 1149942), (84, 958285), (105, 766628), (140, 574971), (210, 383314), (420, 191657)]