20199651875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{24137}}^1$

素因数の和:24273

約数の個数: 40

約数和(自身を含む): 27448188768

約数和(自身を除く): 7248536893

約数列:

[1, 5, 13, 25, 65, 103, 125, 325, 515, 625, 1339, 1625, 2575, 6695, 8125, 12875, 24137, 33475, 64375, 120685, 167375, 313781, 603425, 836875, 1568905, 2486111, 3017125, 7844525, 12430555, 15085625, 32319443, 39222625, 62152775, 161597215, 196113125, 310763875, 807986075, 1553819375, 4039930375, 20199651875]

約数ペア:

[(1, 20199651875), (5, 4039930375), (13, 1553819375), (25, 807986075), (65, 310763875), (103, 196113125), (125, 161597215), (325, 62152775), (515, 39222625), (625, 32319443), (1339, 15085625), (1625, 12430555), (2575, 7844525), (6695, 3017125), (8125, 2486111), (12875, 1568905), (24137, 836875), (33475, 603425), (64375, 313781), (120685, 167375)]