20185968085

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 26572250880

約数和(自身を除く): 6386282795

約数列:

[1, 5, 29, 37, 41, 145, 163, 185, 205, 563, 815, 1073, 1189, 1517, 2815, 4727, 5365, 5945, 6031, 6683, 7585, 16327, 20831, 23083, 23635, 30155, 33415, 43993, 81635, 91769, 104155, 115415, 174899, 193807, 219965, 247271, 458845, 604099, 669407, 854071, 874495, 969035, 1236355, 2661301, 3020495, 3347035, 3395453, 3762529, 4270355, 7170859, 13306505, 16977265, 18812645, 24768059, 35854295, 98468137, 109113341, 123840295, 139213573, 492340685, 545566705, 696067865, 4037193617, 20185968085]

約数ペア:

[(1, 20185968085), (5, 4037193617), (29, 696067865), (37, 545566705), (41, 492340685), (145, 139213573), (163, 123840295), (185, 109113341), (205, 98468137), (563, 35854295), (815, 24768059), (1073, 18812645), (1189, 16977265), (1517, 13306505), (2815, 7170859), (4727, 4270355), (5365, 3762529), (5945, 3395453), (6031, 3347035), (6683, 3020495), (7585, 2661301), (16327, 1236355), (20831, 969035), (23083, 874495), (23635, 854071), (30155, 669407), (33415, 604099), (43993, 458845), (81635, 247271), (91769, 219965), (104155, 193807), (115415, 174899)]