321097520

素因数分解:

$2^4\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{3109}}^1$

素因数の和:4413

約数の個数: 40

約数和(自身を含む): 747370320

約数和(自身を除く): 426272800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1291, 2582, 3109, 5164, 6218, 6455, 10328, 12436, 12910, 15545, 20656, 24872, 25820, 31090, 49744, 51640, 62180, 103280, 124360, 248720, 4013719, 8027438, 16054876, 20068595, 32109752, 40137190, 64219504, 80274380, 160548760, 321097520]

約数ペア:

[(1, 321097520), (2, 160548760), (4, 80274380), (5, 64219504), (8, 40137190), (10, 32109752), (16, 20068595), (20, 16054876), (40, 8027438), (80, 4013719), (1291, 248720), (2582, 124360), (3109, 103280), (5164, 62180), (6218, 51640), (6455, 49744), (10328, 31090), (12436, 25820), (12910, 24872), (15545, 20656)]