128628340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{221773}}^1$

素因数の和:221811

約数の個数: 24

約数和(自身を含む): 279435240

約数和(自身を除く): 150806900

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 221773, 443546, 887092, 1108865, 2217730, 4435460, 6431417, 12862834, 25725668, 32157085, 64314170, 128628340]

約数ペア:

[(1, 128628340), (2, 64314170), (4, 32157085), (5, 25725668), (10, 12862834), (20, 6431417), (29, 4435460), (58, 2217730), (116, 1108865), (145, 887092), (290, 443546), (580, 221773)]