80491300

素因数分解:

$2^2\times 5^2\times {\mathrm{804913}}^1$

素因数の和:804927

約数の個数: 18

約数和(自身を含む): 174666338

約数和(自身を除く): 94175038

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 804913, 1609826, 3219652, 4024565, 8049130, 16098260, 20122825, 40245650, 80491300]

約数ペア:

[(1, 80491300), (2, 40245650), (4, 20122825), (5, 16098260), (10, 8049130), (20, 4024565), (25, 3219652), (50, 1609826), (100, 804913)]