20177500840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72062503}}^1$

素因数の和:72062521

約数の個数: 32

約数和(自身を含む): 51885002880

約数和(自身を除く): 31707502040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72062503, 144125006, 288250012, 360312515, 504437521, 576500024, 720625030, 1008875042, 1441250060, 2017750084, 2522187605, 2882500120, 4035500168, 5044375210, 10088750420, 20177500840]

約数ペア:

[(1, 20177500840), (2, 10088750420), (4, 5044375210), (5, 4035500168), (7, 2882500120), (8, 2522187605), (10, 2017750084), (14, 1441250060), (20, 1008875042), (28, 720625030), (35, 576500024), (40, 504437521), (56, 360312515), (70, 288250012), (140, 144125006), (280, 72062503)]