128859780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{306809}}^1$

素因数の和:306828

約数の個数: 48

約数和(自身を含む): 412352640

約数和(自身を除く): 283492860

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, 306809, 613618, 920427, 1227236, 1534045, 1840854, 2147663, 3068090, 3681708, 4295326, 4602135, 6136180, 6442989, 8590652, 9204270, 10738315, 12885978, 18408540, 21476630, 25771956, 32214945, 42953260, 64429890, 128859780]

約数ペア:

[(1, 128859780), (2, 64429890), (3, 42953260), (4, 32214945), (5, 25771956), (6, 21476630), (7, 18408540), (10, 12885978), (12, 10738315), (14, 9204270), (15, 8590652), (20, 6442989), (21, 6136180), (28, 4602135), (30, 4295326), (35, 3681708), (42, 3068090), (60, 2147663), (70, 1840854), (84, 1534045), (105, 1227236), (140, 920427), (210, 613618), (420, 306809)]