87124720

素因数分解:

$2^4\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1699}}^1$

素因数の和:2353

約数の個数: 40

約数和(自身を含む): 203000400

約数和(自身を除く): 115875680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641, 1282, 1699, 2564, 3205, 3398, 5128, 6410, 6796, 8495, 10256, 12820, 13592, 16990, 25640, 27184, 33980, 51280, 67960, 135920, 1089059, 2178118, 4356236, 5445295, 8712472, 10890590, 17424944, 21781180, 43562360, 87124720]

約数ペア:

[(1, 87124720), (2, 43562360), (4, 21781180), (5, 17424944), (8, 10890590), (10, 8712472), (16, 5445295), (20, 4356236), (40, 2178118), (80, 1089059), (641, 135920), (1282, 67960), (1699, 51280), (2564, 33980), (3205, 27184), (3398, 25640), (5128, 16990), (6410, 13592), (6796, 12820), (8495, 10256)]