31809856

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 84

約数和(自身を含む): 72790812

約数和(自身を除く): 40980956

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 169, 173, 208, 221, 272, 338, 346, 416, 442, 544, 676, 692, 832, 884, 1088, 1352, 1384, 1768, 2249, 2704, 2768, 2873, 2941, 3536, 4498, 5408, 5536, 5746, 5882, 7072, 8996, 10816, 11072, 11492, 11764, 14144, 17992, 22984, 23528, 29237, 35984, 38233, 45968, 47056, 58474, 71968, 76466, 91936, 94112, 116948, 143936, 152932, 183872, 188224, 233896, 305864, 467792, 497029, 611728, 935584, 994058, 1223456, 1871168, 1988116, 2446912, 3976232, 7952464, 15904928, 31809856]

約数ペア:

[(1, 31809856), (2, 15904928), (4, 7952464), (8, 3976232), (13, 2446912), (16, 1988116), (17, 1871168), (26, 1223456), (32, 994058), (34, 935584), (52, 611728), (64, 497029), (68, 467792), (104, 305864), (136, 233896), (169, 188224), (173, 183872), (208, 152932), (221, 143936), (272, 116948), (338, 94112), (346, 91936), (416, 76466), (442, 71968), (544, 58474), (676, 47056), (692, 45968), (832, 38233), (884, 35984), (1088, 29237), (1352, 23528), (1384, 22984), (1768, 17992), (2249, 14144), (2704, 11764), (2768, 11492), (2873, 11072), (2941, 10816), (3536, 8996), (4498, 7072), (5408, 5882), (5536, 5746)]