201951980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{325729}}^1$

素因数の和:325769

約数の個数: 24

約数和(自身を含む): 437781120

約数和(自身を除く): 235829140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 325729, 651458, 1302916, 1628645, 3257290, 6514580, 10097599, 20195198, 40390396, 50487995, 100975990, 201951980]

約数ペア:

[(1, 201951980), (2, 100975990), (4, 50487995), (5, 40390396), (10, 20195198), (20, 10097599), (31, 6514580), (62, 3257290), (124, 1628645), (155, 1302916), (310, 651458), (620, 325729)]