81705000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{419}}^1$

素因数の和:461

約数の個数: 160

約数和(自身を含む): 275536800

約数和(自身を除く): 193831800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 419, 500, 520, 600, 625, 650, 750, 780, 838, 975, 1000, 1250, 1257, 1300, 1500, 1560, 1625, 1676, 1875, 1950, 2095, 2500, 2514, 2600, 3000, 3250, 3352, 3750, 3900, 4190, 4875, 5000, 5028, 5447, 6285, 6500, 7500, 7800, 8125, 8380, 9750, 10056, 10475, 10894, 12570, 13000, 15000, 16250, 16341, 16760, 19500, 20950, 21788, 24375, 25140, 27235, 31425, 32500, 32682, 39000, 41900, 43576, 48750, 50280, 52375, 54470, 62850, 65000, 65364, 81705, 83800, 97500, 104750, 108940, 125700, 130728, 136175, 157125, 163410, 195000, 209500, 217880, 251400, 261875, 272350, 314250, 326820, 408525, 419000, 523750, 544700, 628500, 653640, 680875, 785625, 817050, 1047500, 1089400, 1257000, 1361750, 1571250, 1634100, 2042625, 2095000, 2723500, 3142500, 3268200, 3404375, 4085250, 5447000, 6285000, 6808750, 8170500, 10213125, 13617500, 16341000, 20426250, 27235000, 40852500, 81705000]

約数ペア:

[(1, 81705000), (2, 40852500), (3, 27235000), (4, 20426250), (5, 16341000), (6, 13617500), (8, 10213125), (10, 8170500), (12, 6808750), (13, 6285000), (15, 5447000), (20, 4085250), (24, 3404375), (25, 3268200), (26, 3142500), (30, 2723500), (39, 2095000), (40, 2042625), (50, 1634100), (52, 1571250), (60, 1361750), (65, 1257000), (75, 1089400), (78, 1047500), (100, 817050), (104, 785625), (120, 680875), (125, 653640), (130, 628500), (150, 544700), (156, 523750), (195, 419000), (200, 408525), (250, 326820), (260, 314250), (300, 272350), (312, 261875), (325, 251400), (375, 217880), (390, 209500), (419, 195000), (500, 163410), (520, 157125), (600, 136175), (625, 130728), (650, 125700), (750, 108940), (780, 104750), (838, 97500), (975, 83800), (1000, 81705), (1250, 65364), (1257, 65000), (1300, 62850), (1500, 54470), (1560, 52375), (1625, 50280), (1676, 48750), (1875, 43576), (1950, 41900), (2095, 39000), (2500, 32682), (2514, 32500), (2600, 31425), (3000, 27235), (3250, 25140), (3352, 24375), (3750, 21788), (3900, 20950), (4190, 19500), (4875, 16760), (5000, 16341), (5028, 16250), (5447, 15000), (6285, 13000), (6500, 12570), (7500, 10894), (7800, 10475), (8125, 10056), (8380, 9750)]