80973920

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4643}}^1$

素因数の和:4767

約数の個数: 48

約数和(自身を含む): 193097520

約数和(自身を除く): 112123600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 4643, 8720, 9286, 17440, 18572, 23215, 37144, 46430, 74288, 92860, 148576, 185720, 371440, 506087, 742880, 1012174, 2024348, 2530435, 4048696, 5060870, 8097392, 10121740, 16194784, 20243480, 40486960, 80973920]

約数ペア:

[(1, 80973920), (2, 40486960), (4, 20243480), (5, 16194784), (8, 10121740), (10, 8097392), (16, 5060870), (20, 4048696), (32, 2530435), (40, 2024348), (80, 1012174), (109, 742880), (160, 506087), (218, 371440), (436, 185720), (545, 148576), (872, 92860), (1090, 74288), (1744, 46430), (2180, 37144), (3488, 23215), (4360, 18572), (4643, 17440), (8720, 9286)]