20172078

素因数分解:

$2^1\times 3^4\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:774

約数の個数: 40

約数和(自身を含む): 45476640

約数和(自身を除く): 25304562

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 239, 478, 521, 717, 1042, 1434, 1563, 2151, 3126, 4302, 4689, 6453, 9378, 12906, 14067, 19359, 28134, 38718, 42201, 84402, 124519, 249038, 373557, 747114, 1120671, 2241342, 3362013, 6724026, 10086039, 20172078]

約数ペア:

[(1, 20172078), (2, 10086039), (3, 6724026), (6, 3362013), (9, 2241342), (18, 1120671), (27, 747114), (54, 373557), (81, 249038), (162, 124519), (239, 84402), (478, 42201), (521, 38718), (717, 28134), (1042, 19359), (1434, 14067), (1563, 12906), (2151, 9378), (3126, 6453), (4302, 4689)]