18110750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 21425890

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 125, 131, 158, 175, 250, 262, 350, 395, 553, 655, 790, 875, 917, 1106, 1310, 1750, 1834, 1975, 2765, 3275, 3950, 4585, 5530, 6550, 9170, 9875, 10349, 13825, 16375, 19750, 20698, 22925, 27650, 32750, 45850, 51745, 69125, 72443, 103490, 114625, 138250, 144886, 229250, 258725, 362215, 517450, 724430, 1293625, 1811075, 2587250, 3622150, 9055375, 18110750]

約数ペア:

[(1, 18110750), (2, 9055375), (5, 3622150), (7, 2587250), (10, 1811075), (14, 1293625), (25, 724430), (35, 517450), (50, 362215), (70, 258725), (79, 229250), (125, 144886), (131, 138250), (158, 114625), (175, 103490), (250, 72443), (262, 69125), (350, 51745), (395, 45850), (553, 32750), (655, 27650), (790, 22925), (875, 20698), (917, 19750), (1106, 16375), (1310, 13825), (1750, 10349), (1834, 9875), (1975, 9170), (2765, 6550), (3275, 5530), (3950, 4585)]