12921567380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2741}}^1\times {\mathrm{5749}}^1$

素因数の和:8540

約数の個数: 48

約数和(自身を含む): 27812106000

約数和(自身を除く): 14890538620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2741, 5482, 5749, 10964, 11498, 13705, 22996, 27410, 28745, 54820, 57490, 112381, 114980, 224762, 235709, 449524, 471418, 561905, 942836, 1123810, 1178545, 2247620, 2357090, 4714180, 15758009, 31516018, 63032036, 78790045, 157580090, 315160180, 646078369, 1292156738, 2584313476, 3230391845, 6460783690, 12921567380]

約数ペア:

[(1, 12921567380), (2, 6460783690), (4, 3230391845), (5, 2584313476), (10, 1292156738), (20, 646078369), (41, 315160180), (82, 157580090), (164, 78790045), (205, 63032036), (410, 31516018), (820, 15758009), (2741, 4714180), (5482, 2357090), (5749, 2247620), (10964, 1178545), (11498, 1123810), (13705, 942836), (22996, 561905), (27410, 471418), (28745, 449524), (54820, 235709), (57490, 224762), (112381, 114980)]