28957920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 98993664

約数和(自身を除く): 70035744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 43, 46, 48, 60, 61, 69, 80, 86, 92, 96, 115, 120, 122, 129, 138, 160, 172, 183, 184, 215, 230, 240, 244, 258, 276, 305, 344, 345, 366, 368, 430, 460, 480, 488, 516, 552, 610, 645, 688, 690, 732, 736, 860, 915, 920, 976, 989, 1032, 1104, 1220, 1290, 1376, 1380, 1403, 1464, 1720, 1830, 1840, 1952, 1978, 2064, 2208, 2440, 2580, 2623, 2760, 2806, 2928, 2967, 3440, 3660, 3680, 3956, 4128, 4209, 4880, 4945, 5160, 5246, 5520, 5612, 5856, 5934, 6880, 7015, 7320, 7869, 7912, 8418, 9760, 9890, 10320, 10492, 11040, 11224, 11868, 13115, 14030, 14640, 14835, 15738, 15824, 16836, 19780, 20640, 20984, 21045, 22448, 23736, 26230, 28060, 29280, 29670, 31476, 31648, 33672, 39345, 39560, 41968, 42090, 44896, 47472, 52460, 56120, 59340, 60329, 62952, 67344, 78690, 79120, 83936, 84180, 94944, 104920, 112240, 118680, 120658, 125904, 134688, 157380, 158240, 168360, 180987, 209840, 224480, 237360, 241316, 251808, 301645, 314760, 336720, 361974, 419680, 474720, 482632, 603290, 629520, 673440, 723948, 904935, 965264, 1206580, 1259040, 1447896, 1809870, 1930528, 2413160, 2895792, 3619740, 4826320, 5791584, 7239480, 9652640, 14478960, 28957920]

約数ペア:

[(1, 28957920), (2, 14478960), (3, 9652640), (4, 7239480), (5, 5791584), (6, 4826320), (8, 3619740), (10, 2895792), (12, 2413160), (15, 1930528), (16, 1809870), (20, 1447896), (23, 1259040), (24, 1206580), (30, 965264), (32, 904935), (40, 723948), (43, 673440), (46, 629520), (48, 603290), (60, 482632), (61, 474720), (69, 419680), (80, 361974), (86, 336720), (92, 314760), (96, 301645), (115, 251808), (120, 241316), (122, 237360), (129, 224480), (138, 209840), (160, 180987), (172, 168360), (183, 158240), (184, 157380), (215, 134688), (230, 125904), (240, 120658), (244, 118680), (258, 112240), (276, 104920), (305, 94944), (344, 84180), (345, 83936), (366, 79120), (368, 78690), (430, 67344), (460, 62952), (480, 60329), (488, 59340), (516, 56120), (552, 52460), (610, 47472), (645, 44896), (688, 42090), (690, 41968), (732, 39560), (736, 39345), (860, 33672), (915, 31648), (920, 31476), (976, 29670), (989, 29280), (1032, 28060), (1104, 26230), (1220, 23736), (1290, 22448), (1376, 21045), (1380, 20984), (1403, 20640), (1464, 19780), (1720, 16836), (1830, 15824), (1840, 15738), (1952, 14835), (1978, 14640), (2064, 14030), (2208, 13115), (2440, 11868), (2580, 11224), (2623, 11040), (2760, 10492), (2806, 10320), (2928, 9890), (2967, 9760), (3440, 8418), (3660, 7912), (3680, 7869), (3956, 7320), (4128, 7015), (4209, 6880), (4880, 5934), (4945, 5856), (5160, 5612), (5246, 5520)]