127485020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15817}}^1$

素因数の和:15870

約数の個数: 48

約数和(自身を含む): 297631488

約数和(自身を除く): 170146468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 15817, 31634, 63268, 79085, 158170, 205621, 316340, 411242, 490327, 822484, 980654, 1028105, 1961308, 2056210, 2451635, 4112420, 4903270, 6374251, 9806540, 12748502, 25497004, 31871255, 63742510, 127485020]

約数ペア:

[(1, 127485020), (2, 63742510), (4, 31871255), (5, 25497004), (10, 12748502), (13, 9806540), (20, 6374251), (26, 4903270), (31, 4112420), (52, 2451635), (62, 2056210), (65, 1961308), (124, 1028105), (130, 980654), (155, 822484), (260, 490327), (310, 411242), (403, 316340), (620, 205621), (806, 158170), (1612, 79085), (2015, 63268), (4030, 31634), (8060, 15817)]