164891245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 218661120

約数和(自身を除く): 53769875

約数列:

[1, 5, 17, 29, 85, 145, 151, 443, 493, 755, 2215, 2465, 2567, 4379, 7531, 12835, 12847, 21895, 37655, 64235, 66893, 74443, 218399, 334465, 372215, 1091995, 1137181, 1939897, 5685905, 9699485, 32978249, 164891245]

約数ペア:

[(1, 164891245), (5, 32978249), (17, 9699485), (29, 5685905), (85, 1939897), (145, 1137181), (151, 1091995), (443, 372215), (493, 334465), (755, 218399), (2215, 74443), (2465, 66893), (2567, 64235), (4379, 37655), (7531, 21895), (12835, 12847)]