219816350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10909}}^1$

素因数の和:10965

約数の個数: 48

約数和(自身を含む): 454554240

約数和(自身を除く): 234737890

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 10909, 20150, 21818, 54545, 109090, 141817, 272725, 283634, 338179, 545450, 676358, 709085, 1418170, 1690895, 3381790, 3545425, 4396327, 7090850, 8454475, 8792654, 16908950, 21981635, 43963270, 109908175, 219816350]

約数ペア:

[(1, 219816350), (2, 109908175), (5, 43963270), (10, 21981635), (13, 16908950), (25, 8792654), (26, 8454475), (31, 7090850), (50, 4396327), (62, 3545425), (65, 3381790), (130, 1690895), (155, 1418170), (310, 709085), (325, 676358), (403, 545450), (650, 338179), (775, 283634), (806, 272725), (1550, 141817), (2015, 109090), (4030, 54545), (10075, 21818), (10909, 20150)]