20406510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5273}}^1$

素因数の和:5329

約数の個数: 48

約数和(自身を含む): 54301104

約数和(自身を除く): 33894594

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5273, 10546, 15819, 26365, 31638, 47457, 52730, 79095, 94914, 158190, 226739, 237285, 453478, 474570, 680217, 1133695, 1360434, 2040651, 2267390, 3401085, 4081302, 6802170, 10203255, 20406510]

約数ペア:

[(1, 20406510), (2, 10203255), (3, 6802170), (5, 4081302), (6, 3401085), (9, 2267390), (10, 2040651), (15, 1360434), (18, 1133695), (30, 680217), (43, 474570), (45, 453478), (86, 237285), (90, 226739), (129, 158190), (215, 94914), (258, 79095), (387, 52730), (430, 47457), (645, 31638), (774, 26365), (1290, 15819), (1935, 10546), (3870, 5273)]