20959500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 96

約数和(自身を含む): 62112960

約数和(自身を除く): 41153460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 89, 100, 125, 150, 157, 178, 250, 267, 300, 314, 356, 375, 445, 471, 500, 534, 628, 750, 785, 890, 942, 1068, 1335, 1500, 1570, 1780, 1884, 2225, 2355, 2670, 3140, 3925, 4450, 4710, 5340, 6675, 7850, 8900, 9420, 11125, 11775, 13350, 13973, 15700, 19625, 22250, 23550, 26700, 27946, 33375, 39250, 41919, 44500, 47100, 55892, 58875, 66750, 69865, 78500, 83838, 117750, 133500, 139730, 167676, 209595, 235500, 279460, 349325, 419190, 698650, 838380, 1047975, 1397300, 1746625, 2095950, 3493250, 4191900, 5239875, 6986500, 10479750, 20959500]

約数ペア:

[(1, 20959500), (2, 10479750), (3, 6986500), (4, 5239875), (5, 4191900), (6, 3493250), (10, 2095950), (12, 1746625), (15, 1397300), (20, 1047975), (25, 838380), (30, 698650), (50, 419190), (60, 349325), (75, 279460), (89, 235500), (100, 209595), (125, 167676), (150, 139730), (157, 133500), (178, 117750), (250, 83838), (267, 78500), (300, 69865), (314, 66750), (356, 58875), (375, 55892), (445, 47100), (471, 44500), (500, 41919), (534, 39250), (628, 33375), (750, 27946), (785, 26700), (890, 23550), (942, 22250), (1068, 19625), (1335, 15700), (1500, 13973), (1570, 13350), (1780, 11775), (1884, 11125), (2225, 9420), (2355, 8900), (2670, 7850), (3140, 6675), (3925, 5340), (4450, 4710)]