20537250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 31354590

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 139, 150, 197, 250, 278, 375, 394, 417, 591, 695, 750, 834, 985, 1182, 1390, 1970, 2085, 2955, 3475, 4170, 4925, 5910, 6950, 9850, 10425, 14775, 17375, 20850, 24625, 27383, 29550, 34750, 49250, 52125, 54766, 73875, 82149, 104250, 136915, 147750, 164298, 273830, 410745, 684575, 821490, 1369150, 2053725, 3422875, 4107450, 6845750, 10268625, 20537250]

約数ペア:

[(1, 20537250), (2, 10268625), (3, 6845750), (5, 4107450), (6, 3422875), (10, 2053725), (15, 1369150), (25, 821490), (30, 684575), (50, 410745), (75, 273830), (125, 164298), (139, 147750), (150, 136915), (197, 104250), (250, 82149), (278, 73875), (375, 54766), (394, 52125), (417, 49250), (591, 34750), (695, 29550), (750, 27383), (834, 24625), (985, 20850), (1182, 17375), (1390, 14775), (1970, 10425), (2085, 9850), (2955, 6950), (3475, 5910), (4170, 4925)]