8009020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 17619840

約数和(自身を除く): 9610820

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 79, 137, 148, 158, 185, 274, 316, 370, 395, 548, 685, 740, 790, 1370, 1580, 2740, 2923, 5069, 5846, 10138, 10823, 11692, 14615, 20276, 21646, 25345, 29230, 43292, 50690, 54115, 58460, 101380, 108230, 216460, 400451, 800902, 1601804, 2002255, 4004510, 8009020]

約数ペア:

[(1, 8009020), (2, 4004510), (4, 2002255), (5, 1601804), (10, 800902), (20, 400451), (37, 216460), (74, 108230), (79, 101380), (137, 58460), (148, 54115), (158, 50690), (185, 43292), (274, 29230), (316, 25345), (370, 21646), (395, 20276), (548, 14615), (685, 11692), (740, 10823), (790, 10138), (1370, 5846), (1580, 5069), (2740, 2923)]