87481700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1123}}^1$

素因数の和:1197

約数の個数: 72

約数和(自身を含む): 204882720

約数和(自身を除く): 117401020

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 380, 410, 475, 779, 820, 950, 1025, 1123, 1558, 1900, 2050, 2246, 3116, 3895, 4100, 4492, 5615, 7790, 11230, 15580, 19475, 21337, 22460, 28075, 38950, 42674, 46043, 56150, 77900, 85348, 92086, 106685, 112300, 184172, 213370, 230215, 426740, 460430, 533425, 874817, 920860, 1066850, 1151075, 1749634, 2133700, 2302150, 3499268, 4374085, 4604300, 8748170, 17496340, 21870425, 43740850, 87481700]

約数ペア:

[(1, 87481700), (2, 43740850), (4, 21870425), (5, 17496340), (10, 8748170), (19, 4604300), (20, 4374085), (25, 3499268), (38, 2302150), (41, 2133700), (50, 1749634), (76, 1151075), (82, 1066850), (95, 920860), (100, 874817), (164, 533425), (190, 460430), (205, 426740), (380, 230215), (410, 213370), (475, 184172), (779, 112300), (820, 106685), (950, 92086), (1025, 85348), (1123, 77900), (1558, 56150), (1900, 46043), (2050, 42674), (2246, 38950), (3116, 28075), (3895, 22460), (4100, 21337), (4492, 19475), (5615, 15580), (7790, 11230)]