40418980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{643}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 97372800

約数和(自身を除く): 56953820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 643, 898, 1286, 1796, 2245, 2572, 3143, 3215, 4490, 4501, 6286, 6430, 8980, 9002, 12572, 12860, 15715, 18004, 22505, 31430, 45010, 62860, 90020, 288707, 577414, 1154828, 1443535, 2020949, 2887070, 4041898, 5774140, 8083796, 10104745, 20209490, 40418980]

約数ペア:

[(1, 40418980), (2, 20209490), (4, 10104745), (5, 8083796), (7, 5774140), (10, 4041898), (14, 2887070), (20, 2020949), (28, 1443535), (35, 1154828), (70, 577414), (140, 288707), (449, 90020), (643, 62860), (898, 45010), (1286, 31430), (1796, 22505), (2245, 18004), (2572, 15715), (3143, 12860), (3215, 12572), (4490, 9002), (4501, 8980), (6286, 6430)]