25642240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 70051968

約数和(自身を除く): 44409728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 67, 80, 92, 104, 115, 128, 130, 134, 160, 184, 208, 230, 256, 260, 268, 299, 320, 335, 368, 416, 460, 520, 536, 598, 640, 670, 736, 832, 871, 920, 1040, 1072, 1196, 1280, 1340, 1472, 1495, 1541, 1664, 1742, 1840, 2080, 2144, 2392, 2680, 2944, 2990, 3082, 3328, 3484, 3680, 4160, 4288, 4355, 4784, 5360, 5888, 5980, 6164, 6968, 7360, 7705, 8320, 8576, 8710, 9568, 10720, 11960, 12328, 13936, 14720, 15410, 16640, 17152, 17420, 19136, 20033, 21440, 23920, 24656, 27872, 29440, 30820, 34840, 38272, 40066, 42880, 47840, 49312, 55744, 61640, 69680, 76544, 80132, 85760, 95680, 98624, 100165, 111488, 123280, 139360, 160264, 191360, 197248, 200330, 222976, 246560, 278720, 320528, 382720, 394496, 400660, 493120, 557440, 641056, 801320, 986240, 1114880, 1282112, 1602640, 1972480, 2564224, 3205280, 5128448, 6410560, 12821120, 25642240]

約数ペア:

[(1, 25642240), (2, 12821120), (4, 6410560), (5, 5128448), (8, 3205280), (10, 2564224), (13, 1972480), (16, 1602640), (20, 1282112), (23, 1114880), (26, 986240), (32, 801320), (40, 641056), (46, 557440), (52, 493120), (64, 400660), (65, 394496), (67, 382720), (80, 320528), (92, 278720), (104, 246560), (115, 222976), (128, 200330), (130, 197248), (134, 191360), (160, 160264), (184, 139360), (208, 123280), (230, 111488), (256, 100165), (260, 98624), (268, 95680), (299, 85760), (320, 80132), (335, 76544), (368, 69680), (416, 61640), (460, 55744), (520, 49312), (536, 47840), (598, 42880), (640, 40066), (670, 38272), (736, 34840), (832, 30820), (871, 29440), (920, 27872), (1040, 24656), (1072, 23920), (1196, 21440), (1280, 20033), (1340, 19136), (1472, 17420), (1495, 17152), (1541, 16640), (1664, 15410), (1742, 14720), (1840, 13936), (2080, 12328), (2144, 11960), (2392, 10720), (2680, 9568), (2944, 8710), (2990, 8576), (3082, 8320), (3328, 7705), (3484, 7360), (3680, 6968), (4160, 6164), (4288, 5980), (4355, 5888), (4784, 5360)]