627760420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{11527}}^1$

素因数の和:11932

約数の個数: 48

約数和(自身を含む): 1510629120

約数和(自身を除く): 882868700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1556, 1945, 2723, 3890, 5446, 7780, 10892, 11527, 13615, 23054, 27230, 46108, 54460, 57635, 80689, 115270, 161378, 230540, 322756, 403445, 806890, 1613780, 4484003, 8968006, 17936012, 22420015, 31388021, 44840030, 62776042, 89680060, 125552084, 156940105, 313880210, 627760420]

約数ペア:

[(1, 627760420), (2, 313880210), (4, 156940105), (5, 125552084), (7, 89680060), (10, 62776042), (14, 44840030), (20, 31388021), (28, 22420015), (35, 17936012), (70, 8968006), (140, 4484003), (389, 1613780), (778, 806890), (1556, 403445), (1945, 322756), (2723, 230540), (3890, 161378), (5446, 115270), (7780, 80689), (10892, 57635), (11527, 54460), (13615, 46108), (23054, 27230)]