81648340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{140773}}^1$

素因数の和:140811

約数の個数: 24

約数和(自身を含む): 177375240

約数和(自身を除く): 95726900

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 140773, 281546, 563092, 703865, 1407730, 2815460, 4082417, 8164834, 16329668, 20412085, 40824170, 81648340]

約数ペア:

[(1, 81648340), (2, 40824170), (4, 20412085), (5, 16329668), (10, 8164834), (20, 4082417), (29, 2815460), (58, 1407730), (116, 703865), (145, 563092), (290, 281546), (580, 140773)]