278203420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1264561}}^1$

素因数の和:1264581

約数の個数: 24

約数和(自身を含む): 637339248

約数和(自身を除く): 359135828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1264561, 2529122, 5058244, 6322805, 12645610, 13910171, 25291220, 27820342, 55640684, 69550855, 139101710, 278203420]

約数ペア:

[(1, 278203420), (2, 139101710), (4, 69550855), (5, 55640684), (10, 27820342), (11, 25291220), (20, 13910171), (22, 12645610), (44, 6322805), (55, 5058244), (110, 2529122), (220, 1264561)]