5181340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 11499264

約数和(自身を除く): 6317924

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 137, 155, 244, 274, 305, 310, 548, 610, 620, 685, 1220, 1370, 1891, 2740, 3782, 4247, 7564, 8357, 8494, 9455, 16714, 16988, 18910, 21235, 33428, 37820, 41785, 42470, 83570, 84940, 167140, 259067, 518134, 1036268, 1295335, 2590670, 5181340]

約数ペア:

[(1, 5181340), (2, 2590670), (4, 1295335), (5, 1036268), (10, 518134), (20, 259067), (31, 167140), (61, 84940), (62, 83570), (122, 42470), (124, 41785), (137, 37820), (155, 33428), (244, 21235), (274, 18910), (305, 16988), (310, 16714), (548, 9455), (610, 8494), (620, 8357), (685, 7564), (1220, 4247), (1370, 3782), (1891, 2740)]