40280420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1877}}^1$

素因数の和:1952

約数の個数: 48

約数和(自身を含む): 89918640

約数和(自身を除く): 49638220

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 1073, 1877, 2146, 3754, 4292, 5365, 7508, 9385, 10730, 18770, 21460, 37540, 54433, 69449, 108866, 138898, 217732, 272165, 277796, 347245, 544330, 694490, 1088660, 1388980, 2014021, 4028042, 8056084, 10070105, 20140210, 40280420]

約数ペア:

[(1, 40280420), (2, 20140210), (4, 10070105), (5, 8056084), (10, 4028042), (20, 2014021), (29, 1388980), (37, 1088660), (58, 694490), (74, 544330), (116, 347245), (145, 277796), (148, 272165), (185, 217732), (290, 138898), (370, 108866), (580, 69449), (740, 54433), (1073, 37540), (1877, 21460), (2146, 18770), (3754, 10730), (4292, 9385), (5365, 7508)]