18487264

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 19252256

約数列:

[1, 2, 4, 8, 16, 32, 71, 79, 103, 142, 158, 206, 284, 316, 412, 568, 632, 824, 1136, 1264, 1648, 2272, 2528, 3296, 5609, 7313, 8137, 11218, 14626, 16274, 22436, 29252, 32548, 44872, 58504, 65096, 89744, 117008, 130192, 179488, 234016, 260384, 577727, 1155454, 2310908, 4621816, 9243632, 18487264]

約数ペア:

[(1, 18487264), (2, 9243632), (4, 4621816), (8, 2310908), (16, 1155454), (32, 577727), (71, 260384), (79, 234016), (103, 179488), (142, 130192), (158, 117008), (206, 89744), (284, 65096), (316, 58504), (412, 44872), (568, 32548), (632, 29252), (824, 22436), (1136, 16274), (1264, 14626), (1648, 11218), (2272, 8137), (2528, 7313), (3296, 5609)]