18685016

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 23823784

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 89, 92, 161, 163, 178, 184, 322, 326, 356, 623, 644, 652, 712, 1141, 1246, 1288, 1304, 2047, 2282, 2492, 3749, 4094, 4564, 4984, 7498, 8188, 9128, 14329, 14507, 14996, 16376, 26243, 28658, 29014, 29992, 52486, 57316, 58028, 101549, 104972, 114632, 116056, 203098, 209944, 333661, 406196, 667322, 812392, 1334644, 2335627, 2669288, 4671254, 9342508, 18685016]

約数ペア:

[(1, 18685016), (2, 9342508), (4, 4671254), (7, 2669288), (8, 2335627), (14, 1334644), (23, 812392), (28, 667322), (46, 406196), (56, 333661), (89, 209944), (92, 203098), (161, 116056), (163, 114632), (178, 104972), (184, 101549), (322, 58028), (326, 57316), (356, 52486), (623, 29992), (644, 29014), (652, 28658), (712, 26243), (1141, 16376), (1246, 14996), (1288, 14507), (1304, 14329), (2047, 9128), (2282, 8188), (2492, 7498), (3749, 4984), (4094, 4564)]