20123562805

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1\times {\mathrm{2753}}^1$

素因数の和:3177

約数の個数: 32

約数和(自身を含む): 25009272288

約数和(自身を除く): 4885709483

約数列:

[1, 5, 41, 181, 197, 205, 905, 985, 2753, 7421, 8077, 13765, 35657, 37105, 40385, 112873, 178285, 498293, 542341, 564365, 1461937, 2491465, 2711705, 7309685, 20430013, 22235981, 98163721, 102150065, 111179905, 490818605, 4024712561, 20123562805]

約数ペア:

[(1, 20123562805), (5, 4024712561), (41, 490818605), (181, 111179905), (197, 102150065), (205, 98163721), (905, 22235981), (985, 20430013), (2753, 7309685), (7421, 2711705), (8077, 2491465), (13765, 1461937), (35657, 564365), (37105, 542341), (40385, 498293), (112873, 178285)]