18939250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 39626496

約数和(自身を除く): 20687246

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 97, 110, 125, 142, 194, 250, 275, 355, 485, 550, 710, 781, 970, 1067, 1375, 1562, 1775, 2134, 2425, 2750, 3550, 3905, 4850, 5335, 6887, 7810, 8875, 10670, 12125, 13774, 17750, 19525, 24250, 26675, 34435, 39050, 53350, 68870, 75757, 97625, 133375, 151514, 172175, 195250, 266750, 344350, 378785, 757570, 860875, 1721750, 1893925, 3787850, 9469625, 18939250]

約数ペア:

[(1, 18939250), (2, 9469625), (5, 3787850), (10, 1893925), (11, 1721750), (22, 860875), (25, 757570), (50, 378785), (55, 344350), (71, 266750), (97, 195250), (110, 172175), (125, 151514), (142, 133375), (194, 97625), (250, 75757), (275, 68870), (355, 53350), (485, 39050), (550, 34435), (710, 26675), (781, 24250), (970, 19525), (1067, 17750), (1375, 13774), (1562, 12125), (1775, 10670), (2134, 8875), (2425, 7810), (2750, 6887), (3550, 5335), (3905, 4850)]