20865300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 60891936

約数和(自身を除く): 40026636

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 157, 300, 314, 443, 471, 628, 785, 886, 942, 1329, 1570, 1772, 1884, 2215, 2355, 2658, 3140, 3925, 4430, 4710, 5316, 6645, 7850, 8860, 9420, 11075, 11775, 13290, 15700, 22150, 23550, 26580, 33225, 44300, 47100, 66450, 69551, 132900, 139102, 208653, 278204, 347755, 417306, 695510, 834612, 1043265, 1391020, 1738775, 2086530, 3477550, 4173060, 5216325, 6955100, 10432650, 20865300]

約数ペア:

[(1, 20865300), (2, 10432650), (3, 6955100), (4, 5216325), (5, 4173060), (6, 3477550), (10, 2086530), (12, 1738775), (15, 1391020), (20, 1043265), (25, 834612), (30, 695510), (50, 417306), (60, 347755), (75, 278204), (100, 208653), (150, 139102), (157, 132900), (300, 69551), (314, 66450), (443, 47100), (471, 44300), (628, 33225), (785, 26580), (886, 23550), (942, 22150), (1329, 15700), (1570, 13290), (1772, 11775), (1884, 11075), (2215, 9420), (2355, 8860), (2658, 7850), (3140, 6645), (3925, 5316), (4430, 4710)]