291580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 624960

約数和(自身を除く): 333380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 239, 244, 305, 478, 610, 956, 1195, 1220, 2390, 4780, 14579, 29158, 58316, 72895, 145790, 291580]

約数ペア:

[(1, 291580), (2, 145790), (4, 72895), (5, 58316), (10, 29158), (20, 14579), (61, 4780), (122, 2390), (239, 1220), (244, 1195), (305, 956), (478, 610)]