42004340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1523}}^1$

素因数の和:1736

約数の個数: 48

約数和(自身を含む): 101388672

約数和(自身を除く): 59384332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1523, 1970, 2758, 3046, 3940, 5516, 6092, 6895, 7615, 10661, 13790, 15230, 21322, 27580, 30460, 42644, 53305, 106610, 213220, 300031, 600062, 1200124, 1500155, 2100217, 3000310, 4200434, 6000620, 8400868, 10501085, 21002170, 42004340]

約数ペア:

[(1, 42004340), (2, 21002170), (4, 10501085), (5, 8400868), (7, 6000620), (10, 4200434), (14, 3000310), (20, 2100217), (28, 1500155), (35, 1200124), (70, 600062), (140, 300031), (197, 213220), (394, 106610), (788, 53305), (985, 42644), (1379, 30460), (1523, 27580), (1970, 21322), (2758, 15230), (3046, 13790), (3940, 10661), (5516, 7615), (6092, 6895)]