19171640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15461}}^1$

素因数の和:15503

約数の個数: 32

約数和(自身を含む): 44530560

約数和(自身を除く): 25358920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15461, 30922, 61844, 77305, 123688, 154610, 309220, 479291, 618440, 958582, 1917164, 2396455, 3834328, 4792910, 9585820, 19171640]

約数ペア:

[(1, 19171640), (2, 9585820), (4, 4792910), (5, 3834328), (8, 2396455), (10, 1917164), (20, 958582), (31, 618440), (40, 479291), (62, 309220), (124, 154610), (155, 123688), (248, 77305), (310, 61844), (620, 30922), (1240, 15461)]