20199842468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{161387}}^1$

素因数の和:161516

約数の個数: 48

約数和(自身を含む): 39856380480

約数和(自身を除く): 19656538012

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 83, 116, 166, 332, 377, 754, 1079, 1508, 2158, 2407, 4316, 4814, 9628, 31291, 62582, 125164, 161387, 322774, 645548, 2098031, 4196062, 4680223, 8392124, 9360446, 13395121, 18720892, 26790242, 53580484, 60842899, 121685798, 174136573, 243371596, 348273146, 388458509, 696546292, 776917018, 1553834036, 5049960617, 10099921234, 20199842468]

約数ペア:

[(1, 20199842468), (2, 10099921234), (4, 5049960617), (13, 1553834036), (26, 776917018), (29, 696546292), (52, 388458509), (58, 348273146), (83, 243371596), (116, 174136573), (166, 121685798), (332, 60842899), (377, 53580484), (754, 26790242), (1079, 18720892), (1508, 13395121), (2158, 9360446), (2407, 8392124), (4316, 4680223), (4814, 4196062), (9628, 2098031), (31291, 645548), (62582, 322774), (125164, 161387)]