388494790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{14081}}^1$

素因数の和:14208

約数の個数: 32

約数和(自身を含む): 730010880

約数和(自身を除く): 341516090

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 445, 890, 2759, 5518, 13795, 14081, 27590, 28162, 70405, 140810, 436511, 873022, 1253209, 2182555, 2506418, 4365110, 6266045, 12532090, 38849479, 77698958, 194247395, 388494790]

約数ペア:

[(1, 388494790), (2, 194247395), (5, 77698958), (10, 38849479), (31, 12532090), (62, 6266045), (89, 4365110), (155, 2506418), (178, 2182555), (310, 1253209), (445, 873022), (890, 436511), (2759, 140810), (5518, 70405), (13795, 28162), (14081, 27590)]