40487440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 108421632

約数和(自身を除く): 67934192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 367, 394, 560, 734, 788, 985, 1379, 1468, 1576, 1835, 1970, 2569, 2758, 2936, 3152, 3670, 3940, 5138, 5516, 5872, 6895, 7340, 7880, 10276, 11032, 12845, 13790, 14680, 15760, 20552, 22064, 25690, 27580, 29360, 41104, 51380, 55160, 72299, 102760, 110320, 144598, 205520, 289196, 361495, 506093, 578392, 722990, 1012186, 1156784, 1445980, 2024372, 2530465, 2891960, 4048744, 5060930, 5783920, 8097488, 10121860, 20243720, 40487440]

約数ペア:

[(1, 40487440), (2, 20243720), (4, 10121860), (5, 8097488), (7, 5783920), (8, 5060930), (10, 4048744), (14, 2891960), (16, 2530465), (20, 2024372), (28, 1445980), (35, 1156784), (40, 1012186), (56, 722990), (70, 578392), (80, 506093), (112, 361495), (140, 289196), (197, 205520), (280, 144598), (367, 110320), (394, 102760), (560, 72299), (734, 55160), (788, 51380), (985, 41104), (1379, 29360), (1468, 27580), (1576, 25690), (1835, 22064), (1970, 20552), (2569, 15760), (2758, 14680), (2936, 13790), (3152, 12845), (3670, 11032), (3940, 10276), (5138, 7880), (5516, 7340), (5872, 6895)]