1223456

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 2762424

約数和(自身を除く): 1538968

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 173, 208, 221, 272, 346, 416, 442, 544, 692, 884, 1384, 1768, 2249, 2768, 2941, 3536, 4498, 5536, 5882, 7072, 8996, 11764, 17992, 23528, 35984, 38233, 47056, 71968, 76466, 94112, 152932, 305864, 611728, 1223456]

約数ペア:

[(1, 1223456), (2, 611728), (4, 305864), (8, 152932), (13, 94112), (16, 76466), (17, 71968), (26, 47056), (32, 38233), (34, 35984), (52, 23528), (68, 17992), (104, 11764), (136, 8996), (173, 7072), (208, 5882), (221, 5536), (272, 4498), (346, 3536), (416, 2941), (442, 2768), (544, 2249), (692, 1768), (884, 1384)]