20331500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 52450944

約数和(自身を除く): 32119444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 37, 50, 70, 74, 100, 125, 140, 148, 157, 175, 185, 250, 259, 314, 350, 370, 500, 518, 628, 700, 740, 785, 875, 925, 1036, 1099, 1295, 1570, 1750, 1850, 2198, 2590, 3140, 3500, 3700, 3925, 4396, 4625, 5180, 5495, 5809, 6475, 7850, 9250, 10990, 11618, 12950, 15700, 18500, 19625, 21980, 23236, 25900, 27475, 29045, 32375, 39250, 40663, 54950, 58090, 64750, 78500, 81326, 109900, 116180, 129500, 137375, 145225, 162652, 203315, 274750, 290450, 406630, 549500, 580900, 726125, 813260, 1016575, 1452250, 2033150, 2904500, 4066300, 5082875, 10165750, 20331500]

約数ペア:

[(1, 20331500), (2, 10165750), (4, 5082875), (5, 4066300), (7, 2904500), (10, 2033150), (14, 1452250), (20, 1016575), (25, 813260), (28, 726125), (35, 580900), (37, 549500), (50, 406630), (70, 290450), (74, 274750), (100, 203315), (125, 162652), (140, 145225), (148, 137375), (157, 129500), (175, 116180), (185, 109900), (250, 81326), (259, 78500), (314, 64750), (350, 58090), (370, 54950), (500, 40663), (518, 39250), (628, 32375), (700, 29045), (740, 27475), (785, 25900), (875, 23236), (925, 21980), (1036, 19625), (1099, 18500), (1295, 15700), (1570, 12950), (1750, 11618), (1850, 10990), (2198, 9250), (2590, 7850), (3140, 6475), (3500, 5809), (3700, 5495), (3925, 5180), (4396, 4625)]