81020160

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 216

約数和(自身を含む): 302442504

約数和(自身を除く): 221422344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 541, 576, 585, 624, 640, 720, 768, 780, 832, 936, 960, 1040, 1082, 1152, 1170, 1248, 1280, 1440, 1560, 1623, 1664, 1872, 1920, 2080, 2164, 2304, 2340, 2496, 2705, 2880, 3120, 3246, 3328, 3744, 3840, 4160, 4328, 4680, 4869, 4992, 5410, 5760, 6240, 6492, 7033, 7488, 8115, 8320, 8656, 9360, 9738, 9984, 10820, 11520, 12480, 12984, 14066, 14976, 16230, 16640, 17312, 18720, 19476, 21099, 21640, 24345, 24960, 25968, 28132, 29952, 32460, 34624, 35165, 37440, 38952, 42198, 43280, 48690, 49920, 51936, 56264, 63297, 64920, 69248, 70330, 74880, 77904, 84396, 86560, 97380, 103872, 105495, 112528, 126594, 129840, 138496, 140660, 149760, 155808, 168792, 173120, 194760, 207744, 210990, 225056, 253188, 259680, 281320, 311616, 316485, 337584, 346240, 389520, 415488, 421980, 450112, 506376, 519360, 562640, 623232, 632970, 675168, 692480, 779040, 843960, 900224, 1012752, 1038720, 1125280, 1246464, 1265940, 1350336, 1558080, 1687920, 1800448, 2025504, 2077440, 2250560, 2531880, 2700672, 3116160, 3375840, 4051008, 4501120, 5063760, 5401344, 6232320, 6751680, 8102016, 9002240, 10127520, 13503360, 16204032, 20255040, 27006720, 40510080, 81020160]

約数ペア:

[(1, 81020160), (2, 40510080), (3, 27006720), (4, 20255040), (5, 16204032), (6, 13503360), (8, 10127520), (9, 9002240), (10, 8102016), (12, 6751680), (13, 6232320), (15, 5401344), (16, 5063760), (18, 4501120), (20, 4051008), (24, 3375840), (26, 3116160), (30, 2700672), (32, 2531880), (36, 2250560), (39, 2077440), (40, 2025504), (45, 1800448), (48, 1687920), (52, 1558080), (60, 1350336), (64, 1265940), (65, 1246464), (72, 1125280), (78, 1038720), (80, 1012752), (90, 900224), (96, 843960), (104, 779040), (117, 692480), (120, 675168), (128, 632970), (130, 623232), (144, 562640), (156, 519360), (160, 506376), (180, 450112), (192, 421980), (195, 415488), (208, 389520), (234, 346240), (240, 337584), (256, 316485), (260, 311616), (288, 281320), (312, 259680), (320, 253188), (360, 225056), (384, 210990), (390, 207744), (416, 194760), (468, 173120), (480, 168792), (520, 155808), (541, 149760), (576, 140660), (585, 138496), (624, 129840), (640, 126594), (720, 112528), (768, 105495), (780, 103872), (832, 97380), (936, 86560), (960, 84396), (1040, 77904), (1082, 74880), (1152, 70330), (1170, 69248), (1248, 64920), (1280, 63297), (1440, 56264), (1560, 51936), (1623, 49920), (1664, 48690), (1872, 43280), (1920, 42198), (2080, 38952), (2164, 37440), (2304, 35165), (2340, 34624), (2496, 32460), (2705, 29952), (2880, 28132), (3120, 25968), (3246, 24960), (3328, 24345), (3744, 21640), (3840, 21099), (4160, 19476), (4328, 18720), (4680, 17312), (4869, 16640), (4992, 16230), (5410, 14976), (5760, 14066), (6240, 12984), (6492, 12480), (7033, 11520), (7488, 10820), (8115, 9984), (8320, 9738), (8656, 9360)]