31481920

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:899

約数の個数: 56

約数和(自身を含む): 75639168

約数和(自身を除く): 44157248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 524, 655, 751, 1048, 1310, 1502, 2096, 2620, 3004, 3755, 4192, 5240, 6008, 7510, 8384, 10480, 12016, 15020, 20960, 24032, 30040, 41920, 48064, 60080, 98381, 120160, 196762, 240320, 393524, 491905, 787048, 983810, 1574096, 1967620, 3148192, 3935240, 6296384, 7870480, 15740960, 31481920]

約数ペア:

[(1, 31481920), (2, 15740960), (4, 7870480), (5, 6296384), (8, 3935240), (10, 3148192), (16, 1967620), (20, 1574096), (32, 983810), (40, 787048), (64, 491905), (80, 393524), (131, 240320), (160, 196762), (262, 120160), (320, 98381), (524, 60080), (655, 48064), (751, 41920), (1048, 30040), (1310, 24032), (1502, 20960), (2096, 15020), (2620, 12016), (3004, 10480), (3755, 8384), (4192, 7510), (5240, 6008)]