664685420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4747753}}^1$

素因数の和:4747769

約数の個数: 24

約数和(自身を含む): 1595245344

約数和(自身を除く): 930559924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4747753, 9495506, 18991012, 23738765, 33234271, 47477530, 66468542, 94955060, 132937084, 166171355, 332342710, 664685420]

約数ペア:

[(1, 664685420), (2, 332342710), (4, 166171355), (5, 132937084), (7, 94955060), (10, 66468542), (14, 47477530), (20, 33234271), (28, 23738765), (35, 18991012), (70, 9495506), (140, 4747753)]