40678456

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 95316480

約数和(自身を除く): 54638024

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 71, 91, 104, 142, 182, 284, 364, 497, 568, 728, 787, 923, 994, 1574, 1846, 1988, 3148, 3692, 3976, 5509, 6296, 6461, 7384, 10231, 11018, 12922, 20462, 22036, 25844, 40924, 44072, 51688, 55877, 71617, 81848, 111754, 143234, 223508, 286468, 391139, 447016, 572936, 726401, 782278, 1452802, 1564556, 2905604, 3129112, 5084807, 5811208, 10169614, 20339228, 40678456]

約数ペア:

[(1, 40678456), (2, 20339228), (4, 10169614), (7, 5811208), (8, 5084807), (13, 3129112), (14, 2905604), (26, 1564556), (28, 1452802), (52, 782278), (56, 726401), (71, 572936), (91, 447016), (104, 391139), (142, 286468), (182, 223508), (284, 143234), (364, 111754), (497, 81848), (568, 71617), (728, 55877), (787, 51688), (923, 44072), (994, 40924), (1574, 25844), (1846, 22036), (1988, 20462), (3148, 12922), (3692, 11018), (3976, 10231), (5509, 7384), (6296, 6461)]