128280920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{110587}}^1$

素因数の和:110627

約数の個数: 32

約数和(自身を含む): 298587600

約数和(自身を除く): 170306680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 110587, 221174, 442348, 552935, 884696, 1105870, 2211740, 3207023, 4423480, 6414046, 12828092, 16035115, 25656184, 32070230, 64140460, 128280920]

約数ペア:

[(1, 128280920), (2, 64140460), (4, 32070230), (5, 25656184), (8, 16035115), (10, 12828092), (20, 6414046), (29, 4423480), (40, 3207023), (58, 2211740), (116, 1105870), (145, 884696), (232, 552935), (290, 442348), (580, 221174), (1160, 110587)]