39666980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 86800896

約数和(自身を除く): 47133916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 274, 310, 467, 548, 620, 685, 934, 1370, 1868, 2335, 2740, 4247, 4670, 8494, 9340, 14477, 16988, 21235, 28954, 42470, 57908, 63979, 72385, 84940, 127958, 144770, 255916, 289540, 319895, 639790, 1279580, 1983349, 3966698, 7933396, 9916745, 19833490, 39666980]

約数ペア:

[(1, 39666980), (2, 19833490), (4, 9916745), (5, 7933396), (10, 3966698), (20, 1983349), (31, 1279580), (62, 639790), (124, 319895), (137, 289540), (155, 255916), (274, 144770), (310, 127958), (467, 84940), (548, 72385), (620, 63979), (685, 57908), (934, 42470), (1370, 28954), (1868, 21235), (2335, 16988), (2740, 14477), (4247, 9340), (4670, 8494)]