81578432

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1477

約数の個数: 56

約数和(自身を含む): 176918112

約数和(自身を除く): 95339680

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 142, 208, 284, 416, 568, 832, 923, 1136, 1381, 1846, 2272, 2762, 3692, 4544, 5524, 7384, 11048, 14768, 17953, 22096, 29536, 35906, 44192, 59072, 71812, 88384, 98051, 143624, 196102, 287248, 392204, 574496, 784408, 1148992, 1274663, 1568816, 2549326, 3137632, 5098652, 6275264, 10197304, 20394608, 40789216, 81578432]

約数ペア:

[(1, 81578432), (2, 40789216), (4, 20394608), (8, 10197304), (13, 6275264), (16, 5098652), (26, 3137632), (32, 2549326), (52, 1568816), (64, 1274663), (71, 1148992), (104, 784408), (142, 574496), (208, 392204), (284, 287248), (416, 196102), (568, 143624), (832, 98051), (923, 88384), (1136, 71812), (1381, 59072), (1846, 44192), (2272, 35906), (2762, 29536), (3692, 22096), (4544, 17953), (5524, 14768), (7384, 11048)]