81011000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:262

約数の個数: 128

約数和(自身を含む): 221045760

約数和(自身を除く): 140034760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 71, 100, 125, 140, 142, 163, 175, 200, 250, 280, 284, 326, 350, 355, 497, 500, 568, 652, 700, 710, 815, 875, 994, 1000, 1141, 1304, 1400, 1420, 1630, 1750, 1775, 1988, 2282, 2485, 2840, 3260, 3500, 3550, 3976, 4075, 4564, 4970, 5705, 6520, 7000, 7100, 8150, 8875, 9128, 9940, 11410, 11573, 12425, 14200, 16300, 17750, 19880, 20375, 22820, 23146, 24850, 28525, 32600, 35500, 40750, 45640, 46292, 49700, 57050, 57865, 62125, 71000, 81011, 81500, 92584, 99400, 114100, 115730, 124250, 142625, 162022, 163000, 228200, 231460, 248500, 285250, 289325, 324044, 405055, 462920, 497000, 570500, 578650, 648088, 810110, 1141000, 1157300, 1446625, 1620220, 2025275, 2314600, 2893250, 3240440, 4050550, 5786500, 8101100, 10126375, 11573000, 16202200, 20252750, 40505500, 81011000]

約数ペア:

[(1, 81011000), (2, 40505500), (4, 20252750), (5, 16202200), (7, 11573000), (8, 10126375), (10, 8101100), (14, 5786500), (20, 4050550), (25, 3240440), (28, 2893250), (35, 2314600), (40, 2025275), (50, 1620220), (56, 1446625), (70, 1157300), (71, 1141000), (100, 810110), (125, 648088), (140, 578650), (142, 570500), (163, 497000), (175, 462920), (200, 405055), (250, 324044), (280, 289325), (284, 285250), (326, 248500), (350, 231460), (355, 228200), (497, 163000), (500, 162022), (568, 142625), (652, 124250), (700, 115730), (710, 114100), (815, 99400), (875, 92584), (994, 81500), (1000, 81011), (1141, 71000), (1304, 62125), (1400, 57865), (1420, 57050), (1630, 49700), (1750, 46292), (1775, 45640), (1988, 40750), (2282, 35500), (2485, 32600), (2840, 28525), (3260, 24850), (3500, 23146), (3550, 22820), (3976, 20375), (4075, 19880), (4564, 17750), (4970, 16300), (5705, 14200), (6520, 12425), (7000, 11573), (7100, 11410), (8150, 9940), (8875, 9128)]