9988940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 22870848

約数和(自身を除く): 12881908

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 373, 412, 515, 746, 1030, 1339, 1492, 1865, 2060, 2678, 3730, 4849, 5356, 6695, 7460, 9698, 13390, 19396, 24245, 26780, 38419, 48490, 76838, 96980, 153676, 192095, 384190, 499447, 768380, 998894, 1997788, 2497235, 4994470, 9988940]

約数ペア:

[(1, 9988940), (2, 4994470), (4, 2497235), (5, 1997788), (10, 998894), (13, 768380), (20, 499447), (26, 384190), (52, 192095), (65, 153676), (103, 96980), (130, 76838), (206, 48490), (260, 38419), (373, 26780), (412, 24245), (515, 19396), (746, 13390), (1030, 9698), (1339, 7460), (1492, 6695), (1865, 5356), (2060, 4849), (2678, 3730)]