90681780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{215909}}^1$

素因数の和:215928

約数の個数: 48

約数和(自身を含む): 290183040

約数和(自身を除く): 199501260

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, 215909, 431818, 647727, 863636, 1079545, 1295454, 1511363, 2159090, 2590908, 3022726, 3238635, 4318180, 4534089, 6045452, 6477270, 7556815, 9068178, 12954540, 15113630, 18136356, 22670445, 30227260, 45340890, 90681780]

約数ペア:

[(1, 90681780), (2, 45340890), (3, 30227260), (4, 22670445), (5, 18136356), (6, 15113630), (7, 12954540), (10, 9068178), (12, 7556815), (14, 6477270), (15, 6045452), (20, 4534089), (21, 4318180), (28, 3238635), (30, 3022726), (35, 2590908), (42, 2159090), (60, 1511363), (70, 1295454), (84, 1079545), (105, 863636), (140, 647727), (210, 431818), (420, 215909)]