68651440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 160

約数和(自身を含む): 199112256

約数和(自身を除く): 130460816

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 104, 110, 130, 136, 143, 170, 176, 187, 208, 220, 221, 260, 272, 286, 340, 353, 374, 440, 442, 520, 572, 680, 706, 715, 748, 880, 884, 935, 1040, 1105, 1144, 1360, 1412, 1430, 1496, 1765, 1768, 1870, 2210, 2288, 2431, 2824, 2860, 2992, 3530, 3536, 3740, 3883, 4420, 4589, 4862, 5648, 5720, 6001, 7060, 7480, 7766, 8840, 9178, 9724, 11440, 12002, 12155, 14120, 14960, 15532, 17680, 18356, 19415, 19448, 22945, 24004, 24310, 28240, 30005, 31064, 36712, 38830, 38896, 45890, 48008, 48620, 50479, 60010, 62128, 66011, 73424, 77660, 78013, 91780, 96016, 97240, 100958, 120020, 132022, 155320, 156026, 183560, 194480, 201916, 240040, 252395, 264044, 310640, 312052, 330055, 367120, 390065, 403832, 480080, 504790, 528088, 624104, 660110, 780130, 807664, 858143, 1009580, 1056176, 1248208, 1320220, 1560260, 1716286, 2019160, 2640440, 3120520, 3432572, 4038320, 4290715, 5280880, 6241040, 6865144, 8581430, 13730288, 17162860, 34325720, 68651440]

約数ペア:

[(1, 68651440), (2, 34325720), (4, 17162860), (5, 13730288), (8, 8581430), (10, 6865144), (11, 6241040), (13, 5280880), (16, 4290715), (17, 4038320), (20, 3432572), (22, 3120520), (26, 2640440), (34, 2019160), (40, 1716286), (44, 1560260), (52, 1320220), (55, 1248208), (65, 1056176), (68, 1009580), (80, 858143), (85, 807664), (88, 780130), (104, 660110), (110, 624104), (130, 528088), (136, 504790), (143, 480080), (170, 403832), (176, 390065), (187, 367120), (208, 330055), (220, 312052), (221, 310640), (260, 264044), (272, 252395), (286, 240040), (340, 201916), (353, 194480), (374, 183560), (440, 156026), (442, 155320), (520, 132022), (572, 120020), (680, 100958), (706, 97240), (715, 96016), (748, 91780), (880, 78013), (884, 77660), (935, 73424), (1040, 66011), (1105, 62128), (1144, 60010), (1360, 50479), (1412, 48620), (1430, 48008), (1496, 45890), (1765, 38896), (1768, 38830), (1870, 36712), (2210, 31064), (2288, 30005), (2431, 28240), (2824, 24310), (2860, 24004), (2992, 22945), (3530, 19448), (3536, 19415), (3740, 18356), (3883, 17680), (4420, 15532), (4589, 14960), (4862, 14120), (5648, 12155), (5720, 12002), (6001, 11440), (7060, 9724), (7480, 9178), (7766, 8840)]