2018011960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1627429}}^1$

素因数の和:1627471

約数の個数: 32

約数和(自身を含む): 4686998400

約数和(自身を除く): 2668986440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1627429, 3254858, 6509716, 8137145, 13019432, 16274290, 32548580, 50450299, 65097160, 100900598, 201801196, 252251495, 403602392, 504502990, 1009005980, 2018011960]

約数ペア:

[(1, 2018011960), (2, 1009005980), (4, 504502990), (5, 403602392), (8, 252251495), (10, 201801196), (20, 100900598), (31, 65097160), (40, 50450299), (62, 32548580), (124, 16274290), (155, 13019432), (248, 8137145), (310, 6509716), (620, 3254858), (1240, 1627429)]