138889760

素因数分解:

$2^5\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1103}}^1$

素因数の和:1905

約数の個数: 48

約数和(自身を含む): 328841856

約数和(自身を除く): 189952096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 787, 1103, 1574, 2206, 3148, 3935, 4412, 5515, 6296, 7870, 8824, 11030, 12592, 15740, 17648, 22060, 25184, 31480, 35296, 44120, 62960, 88240, 125920, 176480, 868061, 1736122, 3472244, 4340305, 6944488, 8680610, 13888976, 17361220, 27777952, 34722440, 69444880, 138889760]

約数ペア:

[(1, 138889760), (2, 69444880), (4, 34722440), (5, 27777952), (8, 17361220), (10, 13888976), (16, 8680610), (20, 6944488), (32, 4340305), (40, 3472244), (80, 1736122), (160, 868061), (787, 176480), (1103, 125920), (1574, 88240), (2206, 62960), (3148, 44120), (3935, 35296), (4412, 31480), (5515, 25184), (6296, 22060), (7870, 17648), (8824, 15740), (11030, 12592)]