51585520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{367}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 137991168

約数和(自身を除く): 86405648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 367, 502, 560, 734, 1004, 1255, 1468, 1757, 1835, 2008, 2510, 2569, 2936, 3514, 3670, 4016, 5020, 5138, 5872, 7028, 7340, 8785, 10040, 10276, 12845, 14056, 14680, 17570, 20080, 20552, 25690, 28112, 29360, 35140, 41104, 51380, 70280, 92117, 102760, 140560, 184234, 205520, 368468, 460585, 644819, 736936, 921170, 1289638, 1473872, 1842340, 2579276, 3224095, 3684680, 5158552, 6448190, 7369360, 10317104, 12896380, 25792760, 51585520]

約数ペア:

[(1, 51585520), (2, 25792760), (4, 12896380), (5, 10317104), (7, 7369360), (8, 6448190), (10, 5158552), (14, 3684680), (16, 3224095), (20, 2579276), (28, 1842340), (35, 1473872), (40, 1289638), (56, 921170), (70, 736936), (80, 644819), (112, 460585), (140, 368468), (251, 205520), (280, 184234), (367, 140560), (502, 102760), (560, 92117), (734, 70280), (1004, 51380), (1255, 41104), (1468, 35140), (1757, 29360), (1835, 28112), (2008, 25690), (2510, 20552), (2569, 20080), (2936, 17570), (3514, 14680), (3670, 14056), (4016, 12845), (5020, 10276), (5138, 10040), (5872, 8785), (7028, 7340)]