40442440

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3251}}^1$

素因数の和:3573

約数の個数: 32

約数和(自身を含む): 91316160

約数和(自身を除く): 50873720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 3251, 6220, 6502, 12440, 13004, 16255, 26008, 32510, 65020, 130040, 1011061, 2022122, 4044244, 5055305, 8088488, 10110610, 20221220, 40442440]

約数ペア:

[(1, 40442440), (2, 20221220), (4, 10110610), (5, 8088488), (8, 5055305), (10, 4044244), (20, 2022122), (40, 1011061), (311, 130040), (622, 65020), (1244, 32510), (1555, 26008), (2488, 16255), (3110, 13004), (3251, 12440), (6220, 6502)]