20774020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 45581760

約数和(自身を除く): 24807740

約数列:

[1, 2, 4, 5, 10, 20, 37, 67, 74, 134, 148, 185, 268, 335, 370, 419, 670, 740, 838, 1340, 1676, 2095, 2479, 4190, 4958, 8380, 9916, 12395, 15503, 24790, 28073, 31006, 49580, 56146, 62012, 77515, 112292, 140365, 155030, 280730, 310060, 561460, 1038701, 2077402, 4154804, 5193505, 10387010, 20774020]

約数ペア:

[(1, 20774020), (2, 10387010), (4, 5193505), (5, 4154804), (10, 2077402), (20, 1038701), (37, 561460), (67, 310060), (74, 280730), (134, 155030), (148, 140365), (185, 112292), (268, 77515), (335, 62012), (370, 56146), (419, 49580), (670, 31006), (740, 28073), (838, 24790), (1340, 15503), (1676, 12395), (2095, 9916), (2479, 8380), (4190, 4958)]