99981880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{58129}}^1$

素因数の和:58183

約数の個数: 32

約数和(自身を含む): 230194800

約数和(自身を除く): 130212920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 58129, 116258, 232516, 290645, 465032, 581290, 1162580, 2325160, 2499547, 4999094, 9998188, 12497735, 19996376, 24995470, 49990940, 99981880]

約数ペア:

[(1, 99981880), (2, 49990940), (4, 24995470), (5, 19996376), (8, 12497735), (10, 9998188), (20, 4999094), (40, 2499547), (43, 2325160), (86, 1162580), (172, 581290), (215, 465032), (344, 290645), (430, 232516), (860, 116258), (1720, 58129)]