81880864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1321}}^1$

素因数の和:1493

約数の個数: 48

約数和(自身を含む): 174900600

約数和(自身を除く): 93019736

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 149, 208, 298, 416, 596, 1192, 1321, 1937, 2384, 2642, 3874, 4768, 5284, 7748, 10568, 15496, 17173, 21136, 30992, 34346, 42272, 61984, 68692, 137384, 196829, 274768, 393658, 549536, 787316, 1574632, 2558777, 3149264, 5117554, 6298528, 10235108, 20470216, 40940432, 81880864]

約数ペア:

[(1, 81880864), (2, 40940432), (4, 20470216), (8, 10235108), (13, 6298528), (16, 5117554), (26, 3149264), (32, 2558777), (52, 1574632), (104, 787316), (149, 549536), (208, 393658), (298, 274768), (416, 196829), (596, 137384), (1192, 68692), (1321, 61984), (1937, 42272), (2384, 34346), (2642, 30992), (3874, 21136), (4768, 17173), (5284, 15496), (7748, 10568)]