257999520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 192

約数和(自身を含む): 850348800

約数和(自身を除く): 592349280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 73, 74, 80, 96, 111, 120, 146, 148, 160, 185, 199, 219, 222, 240, 292, 296, 365, 370, 398, 438, 444, 480, 555, 584, 592, 597, 730, 740, 796, 876, 888, 995, 1095, 1110, 1168, 1184, 1194, 1460, 1480, 1592, 1752, 1776, 1990, 2190, 2220, 2336, 2388, 2701, 2920, 2960, 2985, 3184, 3504, 3552, 3980, 4380, 4440, 4776, 5402, 5840, 5920, 5970, 6368, 7008, 7363, 7960, 8103, 8760, 8880, 9552, 10804, 11680, 11940, 13505, 14527, 14726, 15920, 16206, 17520, 17760, 19104, 21608, 22089, 23880, 27010, 29054, 29452, 31840, 32412, 35040, 36815, 40515, 43216, 43581, 44178, 47760, 54020, 58108, 58904, 64824, 72635, 73630, 81030, 86432, 87162, 88356, 95520, 108040, 110445, 116216, 117808, 129648, 145270, 147260, 162060, 174324, 176712, 216080, 217905, 220890, 232432, 235616, 259296, 290540, 294520, 324120, 348648, 353424, 432160, 435810, 441780, 464864, 537499, 581080, 589040, 648240, 697296, 706848, 871620, 883560, 1074998, 1162160, 1178080, 1296480, 1394592, 1612497, 1743240, 1767120, 2149996, 2324320, 2687495, 3224994, 3486480, 3534240, 4299992, 5374990, 6449988, 6972960, 8062485, 8599984, 10749980, 12899976, 16124970, 17199968, 21499960, 25799952, 32249940, 42999920, 51599904, 64499880, 85999840, 128999760, 257999520]

約数ペア:

[(1, 257999520), (2, 128999760), (3, 85999840), (4, 64499880), (5, 51599904), (6, 42999920), (8, 32249940), (10, 25799952), (12, 21499960), (15, 17199968), (16, 16124970), (20, 12899976), (24, 10749980), (30, 8599984), (32, 8062485), (37, 6972960), (40, 6449988), (48, 5374990), (60, 4299992), (73, 3534240), (74, 3486480), (80, 3224994), (96, 2687495), (111, 2324320), (120, 2149996), (146, 1767120), (148, 1743240), (160, 1612497), (185, 1394592), (199, 1296480), (219, 1178080), (222, 1162160), (240, 1074998), (292, 883560), (296, 871620), (365, 706848), (370, 697296), (398, 648240), (438, 589040), (444, 581080), (480, 537499), (555, 464864), (584, 441780), (592, 435810), (597, 432160), (730, 353424), (740, 348648), (796, 324120), (876, 294520), (888, 290540), (995, 259296), (1095, 235616), (1110, 232432), (1168, 220890), (1184, 217905), (1194, 216080), (1460, 176712), (1480, 174324), (1592, 162060), (1752, 147260), (1776, 145270), (1990, 129648), (2190, 117808), (2220, 116216), (2336, 110445), (2388, 108040), (2701, 95520), (2920, 88356), (2960, 87162), (2985, 86432), (3184, 81030), (3504, 73630), (3552, 72635), (3980, 64824), (4380, 58904), (4440, 58108), (4776, 54020), (5402, 47760), (5840, 44178), (5920, 43581), (5970, 43216), (6368, 40515), (7008, 36815), (7363, 35040), (7960, 32412), (8103, 31840), (8760, 29452), (8880, 29054), (9552, 27010), (10804, 23880), (11680, 22089), (11940, 21608), (13505, 19104), (14527, 17760), (14726, 17520), (15920, 16206)]