20450165405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{83663}}^1$

素因数の和:83801

約数の個数: 32

約数和(自身を含む): 26986659840

約数和(自身を除く): 6536494435

約数列:

[1, 5, 19, 31, 83, 95, 155, 415, 589, 1577, 2573, 2945, 7885, 12865, 48887, 83663, 244435, 418315, 1589597, 2593553, 6944029, 7947985, 12967765, 34720145, 49277507, 131936551, 215264899, 246387535, 659682755, 1076324495, 4090033081, 20450165405]

約数ペア:

[(1, 20450165405), (5, 4090033081), (19, 1076324495), (31, 659682755), (83, 246387535), (95, 215264899), (155, 131936551), (415, 49277507), (589, 34720145), (1577, 12967765), (2573, 7947985), (2945, 6944029), (7885, 2593553), (12865, 1589597), (48887, 418315), (83663, 244435)]