278857980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 889761600

約数和(自身を除く): 610903620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 193, 207, 230, 276, 345, 349, 386, 414, 460, 579, 690, 698, 772, 828, 965, 1035, 1047, 1158, 1380, 1396, 1737, 1745, 1930, 2070, 2094, 2316, 2895, 3141, 3474, 3490, 3860, 4140, 4188, 4439, 5235, 5790, 6282, 6948, 6980, 8027, 8685, 8878, 10470, 11580, 12564, 13317, 15705, 16054, 17370, 17756, 20940, 22195, 24081, 26634, 31410, 32108, 34740, 39951, 40135, 44390, 48162, 53268, 62820, 66585, 67357, 72243, 79902, 80270, 88780, 96324, 120405, 133170, 134714, 144486, 159804, 160540, 199755, 202071, 240810, 266340, 269428, 288972, 336785, 361215, 399510, 404142, 481620, 606213, 673570, 722430, 799020, 808284, 1010355, 1212426, 1347140, 1444860, 1549211, 2020710, 2424852, 3031065, 3098422, 4041420, 4647633, 6062130, 6196844, 7746055, 9295266, 12124260, 13942899, 15492110, 18590532, 23238165, 27885798, 30984220, 46476330, 55771596, 69714495, 92952660, 139428990, 278857980]

約数ペア:

[(1, 278857980), (2, 139428990), (3, 92952660), (4, 69714495), (5, 55771596), (6, 46476330), (9, 30984220), (10, 27885798), (12, 23238165), (15, 18590532), (18, 15492110), (20, 13942899), (23, 12124260), (30, 9295266), (36, 7746055), (45, 6196844), (46, 6062130), (60, 4647633), (69, 4041420), (90, 3098422), (92, 3031065), (115, 2424852), (138, 2020710), (180, 1549211), (193, 1444860), (207, 1347140), (230, 1212426), (276, 1010355), (345, 808284), (349, 799020), (386, 722430), (414, 673570), (460, 606213), (579, 481620), (690, 404142), (698, 399510), (772, 361215), (828, 336785), (965, 288972), (1035, 269428), (1047, 266340), (1158, 240810), (1380, 202071), (1396, 199755), (1737, 160540), (1745, 159804), (1930, 144486), (2070, 134714), (2094, 133170), (2316, 120405), (2895, 96324), (3141, 88780), (3474, 80270), (3490, 79902), (3860, 72243), (4140, 67357), (4188, 66585), (4439, 62820), (5235, 53268), (5790, 48162), (6282, 44390), (6948, 40135), (6980, 39951), (8027, 34740), (8685, 32108), (8878, 31410), (10470, 26634), (11580, 24081), (12564, 22195), (13317, 20940), (15705, 17756), (16054, 17370)]