171998540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{39631}}^1$

素因数の和:39678

約数の個数: 48

約数和(自身を含む): 426123264

約数和(自身を除く): 254124724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 39631, 79262, 158524, 198155, 277417, 396310, 554834, 792620, 1109668, 1228561, 1387085, 2457122, 2774170, 4914244, 5548340, 6142805, 8599927, 12285610, 17199854, 24571220, 34399708, 42999635, 85999270, 171998540]

約数ペア:

[(1, 171998540), (2, 85999270), (4, 42999635), (5, 34399708), (7, 24571220), (10, 17199854), (14, 12285610), (20, 8599927), (28, 6142805), (31, 5548340), (35, 4914244), (62, 2774170), (70, 2457122), (124, 1387085), (140, 1228561), (155, 1109668), (217, 792620), (310, 554834), (434, 396310), (620, 277417), (868, 198155), (1085, 158524), (2170, 79262), (4340, 39631)]