28957000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{1259}}^1$

素因数の和:1303

約数の個数: 64

約数和(自身を含む): 70761600

約数和(自身を除く): 41804600

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, 1259, 2300, 2518, 2875, 4600, 5036, 5750, 6295, 10072, 11500, 12590, 23000, 25180, 28957, 31475, 50360, 57914, 62950, 115828, 125900, 144785, 157375, 231656, 251800, 289570, 314750, 579140, 629500, 723925, 1158280, 1259000, 1447850, 2895700, 3619625, 5791400, 7239250, 14478500, 28957000]

約数ペア:

[(1, 28957000), (2, 14478500), (4, 7239250), (5, 5791400), (8, 3619625), (10, 2895700), (20, 1447850), (23, 1259000), (25, 1158280), (40, 723925), (46, 629500), (50, 579140), (92, 314750), (100, 289570), (115, 251800), (125, 231656), (184, 157375), (200, 144785), (230, 125900), (250, 115828), (460, 62950), (500, 57914), (575, 50360), (920, 31475), (1000, 28957), (1150, 25180), (1259, 23000), (2300, 12590), (2518, 11500), (2875, 10072), (4600, 6295), (5036, 5750)]