345000

素因数分解:

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

素因数の和:52

約数の個数: 80

約数和(自身を含む): 1124640

約数和(自身を除く): 779640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 25, 30, 40, 46, 50, 60, 69, 75, 92, 100, 115, 120, 125, 138, 150, 184, 200, 230, 250, 276, 300, 345, 375, 460, 500, 552, 575, 600, 625, 690, 750, 920, 1000, 1150, 1250, 1380, 1500, 1725, 1875, 2300, 2500, 2760, 2875, 3000, 3450, 3750, 4600, 5000, 5750, 6900, 7500, 8625, 11500, 13800, 14375, 15000, 17250, 23000, 28750, 34500, 43125, 57500, 69000, 86250, 115000, 172500, 345000]

約数ペア:

[(1, 345000), (2, 172500), (3, 115000), (4, 86250), (5, 69000), (6, 57500), (8, 43125), (10, 34500), (12, 28750), (15, 23000), (20, 17250), (23, 15000), (24, 14375), (25, 13800), (30, 11500), (40, 8625), (46, 7500), (50, 6900), (60, 5750), (69, 5000), (75, 4600), (92, 3750), (100, 3450), (115, 3000), (120, 2875), (125, 2760), (138, 2500), (150, 2300), (184, 1875), (200, 1725), (230, 1500), (250, 1380), (276, 1250), (300, 1150), (345, 1000), (375, 920), (460, 750), (500, 690), (552, 625), (575, 600)]