20090179580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{164431}}^1$

素因数の和:164630

約数の個数: 48

約数和(自身を含む): 43508707200

約数和(自身を除く): 23418527620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 149, 164, 205, 298, 410, 596, 745, 820, 1490, 2980, 6109, 12218, 24436, 30545, 61090, 122180, 164431, 328862, 657724, 822155, 1644310, 3288620, 6741671, 13483342, 24500219, 26966684, 33708355, 49000438, 67416710, 98000876, 122501095, 134833420, 245002190, 490004380, 1004508979, 2009017958, 4018035916, 5022544895, 10045089790, 20090179580]

約数ペア:

[(1, 20090179580), (2, 10045089790), (4, 5022544895), (5, 4018035916), (10, 2009017958), (20, 1004508979), (41, 490004380), (82, 245002190), (149, 134833420), (164, 122501095), (205, 98000876), (298, 67416710), (410, 49000438), (596, 33708355), (745, 26966684), (820, 24500219), (1490, 13483342), (2980, 6741671), (6109, 3288620), (12218, 1644310), (24436, 822155), (30545, 657724), (61090, 328862), (122180, 164431)]