2018011940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{28319}}^1$

素因数の和:28844

約数の個数: 48

約数和(自身を含む): 4852915200

約数和(自身を除く): 2834903260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 2036, 2545, 3563, 5090, 7126, 10180, 14252, 17815, 28319, 35630, 56638, 71260, 113276, 141595, 198233, 283190, 396466, 566380, 792932, 991165, 1982330, 3964660, 14414371, 28828742, 57657484, 72071855, 100900597, 144143710, 201801194, 288287420, 403602388, 504502985, 1009005970, 2018011940]

約数ペア:

[(1, 2018011940), (2, 1009005970), (4, 504502985), (5, 403602388), (7, 288287420), (10, 201801194), (14, 144143710), (20, 100900597), (28, 72071855), (35, 57657484), (70, 28828742), (140, 14414371), (509, 3964660), (1018, 1982330), (2036, 991165), (2545, 792932), (3563, 566380), (5090, 396466), (7126, 283190), (10180, 198233), (14252, 141595), (17815, 113276), (28319, 71260), (35630, 56638)]