2081620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 4692240

約数和(自身を除く): 2610620

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 97, 116, 145, 148, 185, 194, 290, 370, 388, 485, 580, 740, 970, 1073, 1940, 2146, 2813, 3589, 4292, 5365, 5626, 7178, 10730, 11252, 14065, 14356, 17945, 21460, 28130, 35890, 56260, 71780, 104081, 208162, 416324, 520405, 1040810, 2081620]

約数ペア:

[(1, 2081620), (2, 1040810), (4, 520405), (5, 416324), (10, 208162), (20, 104081), (29, 71780), (37, 56260), (58, 35890), (74, 28130), (97, 21460), (116, 17945), (145, 14356), (148, 14065), (185, 11252), (194, 10730), (290, 7178), (370, 5626), (388, 5365), (485, 4292), (580, 3589), (740, 2813), (970, 2146), (1073, 1940)]