1977220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 4919040

約数和(自身を除く): 2941820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 487, 580, 812, 974, 1015, 1948, 2030, 2435, 3409, 4060, 4870, 6818, 9740, 13636, 14123, 17045, 28246, 34090, 56492, 68180, 70615, 98861, 141230, 197722, 282460, 395444, 494305, 988610, 1977220]

約数ペア:

[(1, 1977220), (2, 988610), (4, 494305), (5, 395444), (7, 282460), (10, 197722), (14, 141230), (20, 98861), (28, 70615), (29, 68180), (35, 56492), (58, 34090), (70, 28246), (116, 17045), (140, 14123), (145, 13636), (203, 9740), (290, 6818), (406, 4870), (487, 4060), (580, 3409), (812, 2435), (974, 2030), (1015, 1948)]