18885984

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 54966240

約数和(自身を除く): 36080256

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 37, 39, 48, 52, 74, 78, 96, 104, 111, 148, 156, 208, 222, 296, 312, 409, 416, 444, 481, 592, 624, 818, 888, 962, 1184, 1227, 1248, 1443, 1636, 1776, 1924, 2454, 2886, 3272, 3552, 3848, 4908, 5317, 5772, 6544, 7696, 9816, 10634, 11544, 13088, 15133, 15392, 15951, 19632, 21268, 23088, 30266, 31902, 39264, 42536, 45399, 46176, 60532, 63804, 85072, 90798, 121064, 127608, 170144, 181596, 196729, 242128, 255216, 363192, 393458, 484256, 510432, 590187, 726384, 786916, 1180374, 1452768, 1573832, 2360748, 3147664, 4721496, 6295328, 9442992, 18885984]

約数ペア:

[(1, 18885984), (2, 9442992), (3, 6295328), (4, 4721496), (6, 3147664), (8, 2360748), (12, 1573832), (13, 1452768), (16, 1180374), (24, 786916), (26, 726384), (32, 590187), (37, 510432), (39, 484256), (48, 393458), (52, 363192), (74, 255216), (78, 242128), (96, 196729), (104, 181596), (111, 170144), (148, 127608), (156, 121064), (208, 90798), (222, 85072), (296, 63804), (312, 60532), (409, 46176), (416, 45399), (444, 42536), (481, 39264), (592, 31902), (624, 30266), (818, 23088), (888, 21268), (962, 19632), (1184, 15951), (1227, 15392), (1248, 15133), (1443, 13088), (1636, 11544), (1776, 10634), (1924, 9816), (2454, 7696), (2886, 6544), (3272, 5772), (3552, 5317), (3848, 4908)]