55149740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{30983}}^1$

素因数の和:31081

約数の個数: 24

約数和(自身を含む): 117119520

約数和(自身を除く): 61969780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 30983, 61966, 123932, 154915, 309830, 619660, 2757487, 5514974, 11029948, 13787435, 27574870, 55149740]

約数ペア:

[(1, 55149740), (2, 27574870), (4, 13787435), (5, 11029948), (10, 5514974), (20, 2757487), (89, 619660), (178, 309830), (356, 154915), (445, 123932), (890, 61966), (1780, 30983)]