42380920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19991}}^1$

素因数の和:20055

約数の個数: 32

約数和(自身を含む): 97161120

約数和(自身を除く): 54780200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 19991, 39982, 79964, 99955, 159928, 199910, 399820, 799640, 1059523, 2119046, 4238092, 5297615, 8476184, 10595230, 21190460, 42380920]

約数ペア:

[(1, 42380920), (2, 21190460), (4, 10595230), (5, 8476184), (8, 5297615), (10, 4238092), (20, 2119046), (40, 1059523), (53, 799640), (106, 399820), (212, 199910), (265, 159928), (424, 99955), (530, 79964), (1060, 39982), (2120, 19991)]