278340620

素因数分解:

$2^2\times 5^1\times {\mathrm{1429}}^1\times {\mathrm{9739}}^1$

素因数の和:11177

約数の個数: 24

約数和(自身を含む): 584984400

約数和(自身を除く): 306643780

約数列:

[1, 2, 4, 5, 10, 20, 1429, 2858, 5716, 7145, 9739, 14290, 19478, 28580, 38956, 48695, 97390, 194780, 13917031, 27834062, 55668124, 69585155, 139170310, 278340620]

約数ペア:

[(1, 278340620), (2, 139170310), (4, 69585155), (5, 55668124), (10, 27834062), (20, 13917031), (1429, 194780), (2858, 97390), (5716, 48695), (7145, 38956), (9739, 28580), (14290, 19478)]