85153900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2113}}^1$

素因数の和:2171

約数の個数: 72

約数和(自身を含む): 205514624

約数和(自身を除く): 120360724

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 2113, 3100, 4030, 4226, 8060, 8452, 10075, 10565, 20150, 21130, 27469, 40300, 42260, 52825, 54938, 65503, 105650, 109876, 131006, 137345, 211300, 262012, 274690, 327515, 549380, 655030, 686725, 851539, 1310060, 1373450, 1637575, 1703078, 2746900, 3275150, 3406156, 4257695, 6550300, 8515390, 17030780, 21288475, 42576950, 85153900]

約数ペア:

[(1, 85153900), (2, 42576950), (4, 21288475), (5, 17030780), (10, 8515390), (13, 6550300), (20, 4257695), (25, 3406156), (26, 3275150), (31, 2746900), (50, 1703078), (52, 1637575), (62, 1373450), (65, 1310060), (100, 851539), (124, 686725), (130, 655030), (155, 549380), (260, 327515), (310, 274690), (325, 262012), (403, 211300), (620, 137345), (650, 131006), (775, 109876), (806, 105650), (1300, 65503), (1550, 54938), (1612, 52825), (2015, 42260), (2113, 40300), (3100, 27469), (4030, 21130), (4226, 20150), (8060, 10565), (8452, 10075)]