20503700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1$

素因数の和:1761

約数の個数: 72

約数和(自身を含む): 53871552

約数和(自身を除く): 33367852

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 238, 340, 350, 425, 476, 595, 700, 850, 1190, 1700, 1723, 2380, 2975, 3446, 5950, 6892, 8615, 11900, 12061, 17230, 24122, 29291, 34460, 43075, 48244, 58582, 60305, 86150, 117164, 120610, 146455, 172300, 205037, 241220, 292910, 301525, 410074, 585820, 603050, 732275, 820148, 1025185, 1206100, 1464550, 2050370, 2929100, 4100740, 5125925, 10251850, 20503700]

約数ペア:

[(1, 20503700), (2, 10251850), (4, 5125925), (5, 4100740), (7, 2929100), (10, 2050370), (14, 1464550), (17, 1206100), (20, 1025185), (25, 820148), (28, 732275), (34, 603050), (35, 585820), (50, 410074), (68, 301525), (70, 292910), (85, 241220), (100, 205037), (119, 172300), (140, 146455), (170, 120610), (175, 117164), (238, 86150), (340, 60305), (350, 58582), (425, 48244), (476, 43075), (595, 34460), (700, 29291), (850, 24122), (1190, 17230), (1700, 12061), (1723, 11900), (2380, 8615), (2975, 6892), (3446, 5950)]