652240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 1571328

約数和(自身を除く): 919088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 263, 310, 496, 526, 620, 1052, 1240, 1315, 2104, 2480, 2630, 4208, 5260, 8153, 10520, 16306, 21040, 32612, 40765, 65224, 81530, 130448, 163060, 326120, 652240]

約数ペア:

[(1, 652240), (2, 326120), (4, 163060), (5, 130448), (8, 81530), (10, 65224), (16, 40765), (20, 32612), (31, 21040), (40, 16306), (62, 10520), (80, 8153), (124, 5260), (155, 4208), (248, 2630), (263, 2480), (310, 2104), (496, 1315), (526, 1240), (620, 1052)]