72390820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 156280320

約数和(自身を除く): 83889500

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 178, 268, 335, 356, 445, 607, 670, 890, 1214, 1340, 1780, 2428, 3035, 5963, 6070, 11926, 12140, 23852, 29815, 40669, 54023, 59630, 81338, 108046, 119260, 162676, 203345, 216092, 270115, 406690, 540230, 813380, 1080460, 3619541, 7239082, 14478164, 18097705, 36195410, 72390820]

約数ペア:

[(1, 72390820), (2, 36195410), (4, 18097705), (5, 14478164), (10, 7239082), (20, 3619541), (67, 1080460), (89, 813380), (134, 540230), (178, 406690), (268, 270115), (335, 216092), (356, 203345), (445, 162676), (607, 119260), (670, 108046), (890, 81338), (1214, 59630), (1340, 54023), (1780, 40669), (2428, 29815), (3035, 23852), (5963, 12140), (6070, 11926)]