20644884

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1477

約数の個数: 72

約数和(自身を含む): 58053632

約数和(自身を除く): 37408748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1423, 1612, 2418, 2846, 3627, 4269, 4836, 5692, 7254, 8538, 12807, 14508, 17076, 18499, 25614, 36998, 44113, 51228, 55497, 73996, 88226, 110994, 132339, 166491, 176452, 221988, 264678, 332982, 397017, 529356, 573469, 665964, 794034, 1146938, 1588068, 1720407, 2293876, 3440814, 5161221, 6881628, 10322442, 20644884]

約数ペア:

[(1, 20644884), (2, 10322442), (3, 6881628), (4, 5161221), (6, 3440814), (9, 2293876), (12, 1720407), (13, 1588068), (18, 1146938), (26, 794034), (31, 665964), (36, 573469), (39, 529356), (52, 397017), (62, 332982), (78, 264678), (93, 221988), (117, 176452), (124, 166491), (156, 132339), (186, 110994), (234, 88226), (279, 73996), (372, 55497), (403, 51228), (468, 44113), (558, 36998), (806, 25614), (1116, 18499), (1209, 17076), (1423, 14508), (1612, 12807), (2418, 8538), (2846, 7254), (3627, 5692), (4269, 4836)]