19899100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15307}}^1$

素因数の和:15334

約数の個数: 36

約数和(自身を含む): 46505704

約数和(自身を除く): 26606604

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15307, 30614, 61228, 76535, 153070, 198991, 306140, 382675, 397982, 765350, 795964, 994955, 1530700, 1989910, 3979820, 4974775, 9949550, 19899100]

約数ペア:

[(1, 19899100), (2, 9949550), (4, 4974775), (5, 3979820), (10, 1989910), (13, 1530700), (20, 994955), (25, 795964), (26, 765350), (50, 397982), (52, 382675), (65, 306140), (100, 198991), (130, 153070), (260, 76535), (325, 61228), (650, 30614), (1300, 15307)]