21298000

素因数分解:

$2^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:509

約数の個数: 80

約数和(自身を含む): 53853696

約数和(自身を除く): 32555696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 184, 200, 230, 250, 368, 400, 460, 463, 500, 575, 920, 926, 1000, 1150, 1840, 1852, 2000, 2300, 2315, 2875, 3704, 4600, 4630, 5750, 7408, 9200, 9260, 10649, 11500, 11575, 18520, 21298, 23000, 23150, 37040, 42596, 46000, 46300, 53245, 57875, 85192, 92600, 106490, 115750, 170384, 185200, 212980, 231500, 266225, 425960, 463000, 532450, 851920, 926000, 1064900, 1331125, 2129800, 2662250, 4259600, 5324500, 10649000, 21298000]

約数ペア:

[(1, 21298000), (2, 10649000), (4, 5324500), (5, 4259600), (8, 2662250), (10, 2129800), (16, 1331125), (20, 1064900), (23, 926000), (25, 851920), (40, 532450), (46, 463000), (50, 425960), (80, 266225), (92, 231500), (100, 212980), (115, 185200), (125, 170384), (184, 115750), (200, 106490), (230, 92600), (250, 85192), (368, 57875), (400, 53245), (460, 46300), (463, 46000), (500, 42596), (575, 37040), (920, 23150), (926, 23000), (1000, 21298), (1150, 18520), (1840, 11575), (1852, 11500), (2000, 10649), (2300, 9260), (2315, 9200), (2875, 7408), (3704, 5750), (4600, 4630)]