28727000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1293

約数の個数: 64

約数和(自身を含む): 70200000

約数和(自身を除く): 41473000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 920, 1000, 1150, 1249, 2300, 2498, 2875, 4600, 4996, 5750, 6245, 9992, 11500, 12490, 23000, 24980, 28727, 31225, 49960, 57454, 62450, 114908, 124900, 143635, 156125, 229816, 249800, 287270, 312250, 574540, 624500, 718175, 1149080, 1249000, 1436350, 2872700, 3590875, 5745400, 7181750, 14363500, 28727000]

約数ペア:

[(1, 28727000), (2, 14363500), (4, 7181750), (5, 5745400), (8, 3590875), (10, 2872700), (20, 1436350), (23, 1249000), (25, 1149080), (40, 718175), (46, 624500), (50, 574540), (92, 312250), (100, 287270), (115, 249800), (125, 229816), (184, 156125), (200, 143635), (230, 124900), (250, 114908), (460, 62450), (500, 57454), (575, 49960), (920, 31225), (1000, 28727), (1150, 24980), (1249, 23000), (2300, 12490), (2498, 11500), (2875, 9992), (4600, 6245), (4996, 5750)]