20754200

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2588

約数の個数: 48

約数和(自身を含む): 49449960

約数和(自身を除く): 28695760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2531, 4100, 5062, 8200, 10124, 12655, 20248, 25310, 50620, 63275, 101240, 103771, 126550, 207542, 253100, 415084, 506200, 518855, 830168, 1037710, 2075420, 2594275, 4150840, 5188550, 10377100, 20754200]

約数ペア:

[(1, 20754200), (2, 10377100), (4, 5188550), (5, 4150840), (8, 2594275), (10, 2075420), (20, 1037710), (25, 830168), (40, 518855), (41, 506200), (50, 415084), (82, 253100), (100, 207542), (164, 126550), (200, 103771), (205, 101240), (328, 63275), (410, 50620), (820, 25310), (1025, 20248), (1640, 12655), (2050, 10124), (2531, 8200), (4100, 5062)]