30556180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 68060160

約数和(自身を除く): 37503980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 421, 764, 842, 955, 1684, 1910, 2105, 3629, 3820, 4210, 7258, 7999, 8420, 14516, 15998, 18145, 31996, 36290, 39995, 72580, 79990, 80411, 159980, 160822, 321644, 402055, 804110, 1527809, 1608220, 3055618, 6111236, 7639045, 15278090, 30556180]

約数ペア:

[(1, 30556180), (2, 15278090), (4, 7639045), (5, 6111236), (10, 3055618), (19, 1608220), (20, 1527809), (38, 804110), (76, 402055), (95, 321644), (190, 160822), (191, 159980), (380, 80411), (382, 79990), (421, 72580), (764, 39995), (842, 36290), (955, 31996), (1684, 18145), (1910, 15998), (2105, 14516), (3629, 8420), (3820, 7999), (4210, 7258)]