140498440

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{7039}}^1$

素因数の和:7549

約数の個数: 32

約数和(自身を含む): 316800000

約数和(自身を除く): 176301560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 7039, 9980, 14078, 19960, 28156, 35195, 56312, 70390, 140780, 281560, 3512461, 7024922, 14049844, 17562305, 28099688, 35124610, 70249220, 140498440]

約数ペア:

[(1, 140498440), (2, 70249220), (4, 35124610), (5, 28099688), (8, 17562305), (10, 14049844), (20, 7024922), (40, 3512461), (499, 281560), (998, 140780), (1996, 70390), (2495, 56312), (3992, 35195), (4990, 28156), (7039, 19960), (9980, 14078)]