20429060

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 24930940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 445, 460, 499, 890, 998, 1780, 1996, 2047, 2495, 4094, 4990, 8188, 9980, 10235, 11477, 20470, 22954, 40940, 44411, 45908, 57385, 88822, 114770, 177644, 222055, 229540, 444110, 888220, 1021453, 2042906, 4085812, 5107265, 10214530, 20429060]

約数ペア:

[(1, 20429060), (2, 10214530), (4, 5107265), (5, 4085812), (10, 2042906), (20, 1021453), (23, 888220), (46, 444110), (89, 229540), (92, 222055), (115, 177644), (178, 114770), (230, 88822), (356, 57385), (445, 45908), (460, 44411), (499, 40940), (890, 22954), (998, 20470), (1780, 11477), (1996, 10235), (2047, 9980), (2495, 8188), (4094, 4990)]