40840880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 101347680

約数和(自身を除く): 60506800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 97, 152, 190, 194, 277, 304, 380, 388, 485, 554, 760, 776, 970, 1108, 1385, 1520, 1552, 1843, 1940, 2216, 2770, 3686, 3880, 4432, 5263, 5540, 7372, 7760, 9215, 10526, 11080, 14744, 18430, 21052, 22160, 26315, 26869, 29488, 36860, 42104, 52630, 53738, 73720, 84208, 105260, 107476, 134345, 147440, 210520, 214952, 268690, 421040, 429904, 510511, 537380, 1021022, 1074760, 2042044, 2149520, 2552555, 4084088, 5105110, 8168176, 10210220, 20420440, 40840880]

約数ペア:

[(1, 40840880), (2, 20420440), (4, 10210220), (5, 8168176), (8, 5105110), (10, 4084088), (16, 2552555), (19, 2149520), (20, 2042044), (38, 1074760), (40, 1021022), (76, 537380), (80, 510511), (95, 429904), (97, 421040), (152, 268690), (190, 214952), (194, 210520), (277, 147440), (304, 134345), (380, 107476), (388, 105260), (485, 84208), (554, 73720), (760, 53738), (776, 52630), (970, 42104), (1108, 36860), (1385, 29488), (1520, 26869), (1552, 26315), (1843, 22160), (1940, 21052), (2216, 18430), (2770, 14744), (3686, 11080), (3880, 10526), (4432, 9215), (5263, 7760), (5540, 7372)]