19966336

素因数分解:

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

素因数の和:124

約数の個数: 64

約数和(自身を含む): 43696800

約数和(自身を除く): 23730464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 169, 208, 284, 338, 416, 568, 676, 832, 923, 1136, 1352, 1664, 1846, 2197, 2272, 2704, 3692, 4394, 4544, 5408, 7384, 8788, 9088, 10816, 11999, 14768, 17576, 21632, 23998, 29536, 35152, 47996, 59072, 70304, 95992, 118144, 140608, 155987, 191984, 281216, 311974, 383968, 623948, 767936, 1247896, 1535872, 2495792, 4991584, 9983168, 19966336]

約数ペア:

[(1, 19966336), (2, 9983168), (4, 4991584), (8, 2495792), (13, 1535872), (16, 1247896), (26, 767936), (32, 623948), (52, 383968), (64, 311974), (71, 281216), (104, 191984), (128, 155987), (142, 140608), (169, 118144), (208, 95992), (284, 70304), (338, 59072), (416, 47996), (568, 35152), (676, 29536), (832, 23998), (923, 21632), (1136, 17576), (1352, 14768), (1664, 11999), (1846, 10816), (2197, 9088), (2272, 8788), (2704, 7384), (3692, 5408), (4394, 4544)]