81506900

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{7213}}^1$

素因数の和:7340

約数の個数: 36

約数和(自身を含む): 178459932

約数和(自身を除く): 96953032

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 226, 452, 565, 1130, 2260, 2825, 5650, 7213, 11300, 14426, 28852, 36065, 72130, 144260, 180325, 360650, 721300, 815069, 1630138, 3260276, 4075345, 8150690, 16301380, 20376725, 40753450, 81506900]

約数ペア:

[(1, 81506900), (2, 40753450), (4, 20376725), (5, 16301380), (10, 8150690), (20, 4075345), (25, 3260276), (50, 1630138), (100, 815069), (113, 721300), (226, 360650), (452, 180325), (565, 144260), (1130, 72130), (2260, 36065), (2825, 28852), (5650, 14426), (7213, 11300)]