287702980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{727}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 619347456

約数和(自身を除く): 331644476

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 421, 470, 727, 842, 940, 1454, 1684, 2105, 2908, 3635, 4210, 7270, 8420, 14540, 19787, 34169, 39574, 68338, 79148, 98935, 136676, 170845, 197870, 306067, 341690, 395740, 612134, 683380, 1224268, 1530335, 3060670, 6121340, 14385149, 28770298, 57540596, 71925745, 143851490, 287702980]

約数ペア:

[(1, 287702980), (2, 143851490), (4, 71925745), (5, 57540596), (10, 28770298), (20, 14385149), (47, 6121340), (94, 3060670), (188, 1530335), (235, 1224268), (421, 683380), (470, 612134), (727, 395740), (842, 341690), (940, 306067), (1454, 197870), (1684, 170845), (2105, 136676), (2908, 98935), (3635, 79148), (4210, 68338), (7270, 39574), (8420, 34169), (14540, 19787)]