247466240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 688746240

約数和(自身を除く): 441280000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 256, 280, 284, 320, 355, 389, 448, 497, 560, 568, 640, 710, 778, 896, 994, 1120, 1136, 1280, 1420, 1556, 1792, 1945, 1988, 2240, 2272, 2485, 2723, 2840, 3112, 3890, 3976, 4480, 4544, 4970, 5446, 5680, 6224, 7780, 7952, 8960, 9088, 9940, 10892, 11360, 12448, 13615, 15560, 15904, 18176, 19880, 21784, 22720, 24896, 27230, 27619, 31120, 31808, 39760, 43568, 45440, 49792, 54460, 55238, 62240, 63616, 79520, 87136, 90880, 99584, 108920, 110476, 124480, 127232, 138095, 159040, 174272, 193333, 217840, 220952, 248960, 276190, 318080, 348544, 386666, 435680, 441904, 497920, 552380, 636160, 697088, 773332, 871360, 883808, 966665, 1104760, 1546664, 1742720, 1767616, 1933330, 2209520, 3093328, 3485440, 3535232, 3866660, 4419040, 6186656, 7070464, 7733320, 8838080, 12373312, 15466640, 17676160, 24746624, 30933280, 35352320, 49493248, 61866560, 123733120, 247466240]

約数ペア:

[(1, 247466240), (2, 123733120), (4, 61866560), (5, 49493248), (7, 35352320), (8, 30933280), (10, 24746624), (14, 17676160), (16, 15466640), (20, 12373312), (28, 8838080), (32, 7733320), (35, 7070464), (40, 6186656), (56, 4419040), (64, 3866660), (70, 3535232), (71, 3485440), (80, 3093328), (112, 2209520), (128, 1933330), (140, 1767616), (142, 1742720), (160, 1546664), (224, 1104760), (256, 966665), (280, 883808), (284, 871360), (320, 773332), (355, 697088), (389, 636160), (448, 552380), (497, 497920), (560, 441904), (568, 435680), (640, 386666), (710, 348544), (778, 318080), (896, 276190), (994, 248960), (1120, 220952), (1136, 217840), (1280, 193333), (1420, 174272), (1556, 159040), (1792, 138095), (1945, 127232), (1988, 124480), (2240, 110476), (2272, 108920), (2485, 99584), (2723, 90880), (2840, 87136), (3112, 79520), (3890, 63616), (3976, 62240), (4480, 55238), (4544, 54460), (4970, 49792), (5446, 45440), (5680, 43568), (6224, 39760), (7780, 31808), (7952, 31120), (8960, 27619), (9088, 27230), (9940, 24896), (10892, 22720), (11360, 21784), (12448, 19880), (13615, 18176), (15560, 15904)]