20545508750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{15233}}^1$

素因数の和:15351

約数の個数: 80

約数和(自身を含む): 41975276112

約数和(自身を除く): 21429767362

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 83, 125, 130, 166, 250, 325, 415, 625, 650, 830, 1079, 1250, 1625, 2075, 2158, 3250, 4150, 5395, 8125, 10375, 10790, 15233, 16250, 20750, 26975, 30466, 51875, 53950, 76165, 103750, 134875, 152330, 198029, 269750, 380825, 396058, 674375, 761650, 990145, 1264339, 1348750, 1904125, 1980290, 2528678, 3808250, 4950725, 6321695, 9520625, 9901450, 12643390, 16436407, 19041250, 24753625, 31608475, 32872814, 49507250, 63216950, 82182035, 123768125, 158042375, 164364070, 247536250, 316084750, 410910175, 790211875, 821820350, 1580423750, 2054550875, 4109101750, 10272754375, 20545508750]

約数ペア:

[(1, 20545508750), (2, 10272754375), (5, 4109101750), (10, 2054550875), (13, 1580423750), (25, 821820350), (26, 790211875), (50, 410910175), (65, 316084750), (83, 247536250), (125, 164364070), (130, 158042375), (166, 123768125), (250, 82182035), (325, 63216950), (415, 49507250), (625, 32872814), (650, 31608475), (830, 24753625), (1079, 19041250), (1250, 16436407), (1625, 12643390), (2075, 9901450), (2158, 9520625), (3250, 6321695), (4150, 4950725), (5395, 3808250), (8125, 2528678), (10375, 1980290), (10790, 1904125), (15233, 1348750), (16250, 1264339), (20750, 990145), (26975, 761650), (30466, 674375), (51875, 396058), (53950, 380825), (76165, 269750), (103750, 198029), (134875, 152330)]