8158780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{577}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 19809216

約数和(自身を除く): 11650436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 577, 707, 1010, 1154, 1414, 2020, 2308, 2828, 2885, 3535, 4039, 5770, 7070, 8078, 11540, 14140, 16156, 20195, 40390, 58277, 80780, 116554, 233108, 291385, 407939, 582770, 815878, 1165540, 1631756, 2039695, 4079390, 8158780]

約数ペア:

[(1, 8158780), (2, 4079390), (4, 2039695), (5, 1631756), (7, 1165540), (10, 815878), (14, 582770), (20, 407939), (28, 291385), (35, 233108), (70, 116554), (101, 80780), (140, 58277), (202, 40390), (404, 20195), (505, 16156), (577, 14140), (707, 11540), (1010, 8078), (1154, 7070), (1414, 5770), (2020, 4039), (2308, 3535), (2828, 2885)]