18170000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 100

約数和(自身を含む): 46485120

約数和(自身を除く): 28315120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 79, 80, 92, 100, 115, 125, 158, 184, 200, 230, 250, 316, 368, 395, 400, 460, 500, 575, 625, 632, 790, 920, 1000, 1150, 1250, 1264, 1580, 1817, 1840, 1975, 2000, 2300, 2500, 2875, 3160, 3634, 3950, 4600, 5000, 5750, 6320, 7268, 7900, 9085, 9200, 9875, 10000, 11500, 14375, 14536, 15800, 18170, 19750, 23000, 28750, 29072, 31600, 36340, 39500, 45425, 46000, 49375, 57500, 72680, 79000, 90850, 98750, 115000, 145360, 158000, 181700, 197500, 227125, 230000, 363400, 395000, 454250, 726800, 790000, 908500, 1135625, 1817000, 2271250, 3634000, 4542500, 9085000, 18170000]

約数ペア:

[(1, 18170000), (2, 9085000), (4, 4542500), (5, 3634000), (8, 2271250), (10, 1817000), (16, 1135625), (20, 908500), (23, 790000), (25, 726800), (40, 454250), (46, 395000), (50, 363400), (79, 230000), (80, 227125), (92, 197500), (100, 181700), (115, 158000), (125, 145360), (158, 115000), (184, 98750), (200, 90850), (230, 79000), (250, 72680), (316, 57500), (368, 49375), (395, 46000), (400, 45425), (460, 39500), (500, 36340), (575, 31600), (625, 29072), (632, 28750), (790, 23000), (920, 19750), (1000, 18170), (1150, 15800), (1250, 14536), (1264, 14375), (1580, 11500), (1817, 10000), (1840, 9875), (1975, 9200), (2000, 9085), (2300, 7900), (2500, 7268), (2875, 6320), (3160, 5750), (3634, 5000), (3950, 4600)]