201774775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1459

約数の個数: 24

約数和(自身を含む): 264256400

約数和(自身を除く): 62481625

約数列:

[1, 5, 19, 25, 95, 421, 475, 1009, 2105, 5045, 7999, 10525, 19171, 25225, 39995, 95855, 199975, 424789, 479275, 2123945, 8070991, 10619725, 40354955, 201774775]

約数ペア:

[(1, 201774775), (5, 40354955), (19, 10619725), (25, 8070991), (95, 2123945), (421, 479275), (475, 424789), (1009, 199975), (2105, 95855), (5045, 39995), (7999, 25225), (10525, 19171)]