205508992

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{123503}}^1$

素因数の和:123530

約数の個数: 32

約数和(自身を含む): 440909280

約数和(自身を除く): 235400288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 123503, 247006, 494012, 988024, 1605539, 1976048, 3211078, 3952096, 6422156, 7904192, 12844312, 15808384, 25688624, 51377248, 102754496, 205508992]

約数ペア:

[(1, 205508992), (2, 102754496), (4, 51377248), (8, 25688624), (13, 15808384), (16, 12844312), (26, 7904192), (32, 6422156), (52, 3952096), (64, 3211078), (104, 1976048), (128, 1605539), (208, 988024), (416, 494012), (832, 247006), (1664, 123503)]