15428980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{577}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 37287936

約数和(自身を除く): 21858956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 577, 764, 955, 1154, 1337, 1910, 2308, 2674, 2885, 3820, 4039, 5348, 5770, 6685, 8078, 11540, 13370, 16156, 20195, 26740, 40390, 80780, 110207, 220414, 440828, 551035, 771449, 1102070, 1542898, 2204140, 3085796, 3857245, 7714490, 15428980]

約数ペア:

[(1, 15428980), (2, 7714490), (4, 3857245), (5, 3085796), (7, 2204140), (10, 1542898), (14, 1102070), (20, 771449), (28, 551035), (35, 440828), (70, 220414), (140, 110207), (191, 80780), (382, 40390), (577, 26740), (764, 20195), (955, 16156), (1154, 13370), (1337, 11540), (1910, 8078), (2308, 6685), (2674, 5770), (2885, 5348), (3820, 4039)]