4945000

素因数分解:

$2^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 80

約数和(自身を含む): 12371040

約数和(自身を除く): 7426040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 43, 46, 50, 86, 92, 100, 115, 125, 172, 184, 200, 215, 230, 250, 344, 430, 460, 500, 575, 625, 860, 920, 989, 1000, 1075, 1150, 1250, 1720, 1978, 2150, 2300, 2500, 2875, 3956, 4300, 4600, 4945, 5000, 5375, 5750, 7912, 8600, 9890, 10750, 11500, 14375, 19780, 21500, 23000, 24725, 26875, 28750, 39560, 43000, 49450, 53750, 57500, 98900, 107500, 115000, 123625, 197800, 215000, 247250, 494500, 618125, 989000, 1236250, 2472500, 4945000]

約数ペア:

[(1, 4945000), (2, 2472500), (4, 1236250), (5, 989000), (8, 618125), (10, 494500), (20, 247250), (23, 215000), (25, 197800), (40, 123625), (43, 115000), (46, 107500), (50, 98900), (86, 57500), (92, 53750), (100, 49450), (115, 43000), (125, 39560), (172, 28750), (184, 26875), (200, 24725), (215, 23000), (230, 21500), (250, 19780), (344, 14375), (430, 11500), (460, 10750), (500, 9890), (575, 8600), (625, 7912), (860, 5750), (920, 5375), (989, 5000), (1000, 4945), (1075, 4600), (1150, 4300), (1250, 3956), (1720, 2875), (1978, 2500), (2150, 2300)]