51257440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1344

約数の個数: 96

約数和(自身を含む): 137380320

約数和(自身を除く): 86122880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 494, 520, 608, 760, 988, 1040, 1235, 1297, 1520, 1976, 2080, 2470, 2594, 3040, 3952, 4940, 5188, 6485, 7904, 9880, 10376, 12970, 16861, 19760, 20752, 24643, 25940, 33722, 39520, 41504, 49286, 51880, 67444, 84305, 98572, 103760, 123215, 134888, 168610, 197144, 207520, 246430, 269776, 320359, 337220, 394288, 492860, 539552, 640718, 674440, 788576, 985720, 1281436, 1348880, 1601795, 1971440, 2562872, 2697760, 3203590, 3942880, 5125744, 6407180, 10251488, 12814360, 25628720, 51257440]

約数ペア:

[(1, 51257440), (2, 25628720), (4, 12814360), (5, 10251488), (8, 6407180), (10, 5125744), (13, 3942880), (16, 3203590), (19, 2697760), (20, 2562872), (26, 1971440), (32, 1601795), (38, 1348880), (40, 1281436), (52, 985720), (65, 788576), (76, 674440), (80, 640718), (95, 539552), (104, 492860), (130, 394288), (152, 337220), (160, 320359), (190, 269776), (208, 246430), (247, 207520), (260, 197144), (304, 168610), (380, 134888), (416, 123215), (494, 103760), (520, 98572), (608, 84305), (760, 67444), (988, 51880), (1040, 49286), (1235, 41504), (1297, 39520), (1520, 33722), (1976, 25940), (2080, 24643), (2470, 20752), (2594, 19760), (3040, 16861), (3952, 12970), (4940, 10376), (5188, 9880), (6485, 7904)]