18005680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 160

約数和(自身を含む): 54282240

約数和(自身を除く): 36276560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 37, 40, 44, 55, 56, 70, 74, 77, 79, 80, 88, 110, 112, 140, 148, 154, 158, 176, 185, 220, 259, 280, 296, 308, 316, 370, 385, 395, 407, 440, 518, 553, 560, 592, 616, 632, 740, 770, 790, 814, 869, 880, 1036, 1106, 1232, 1264, 1295, 1480, 1540, 1580, 1628, 1738, 2035, 2072, 2212, 2590, 2765, 2849, 2923, 2960, 3080, 3160, 3256, 3476, 4070, 4144, 4345, 4424, 5180, 5530, 5698, 5846, 6083, 6160, 6320, 6512, 6952, 8140, 8690, 8848, 10360, 11060, 11396, 11692, 12166, 13904, 14245, 14615, 16280, 17380, 20461, 20720, 22120, 22792, 23384, 24332, 28490, 29230, 30415, 32153, 32560, 34760, 40922, 44240, 45584, 46768, 48664, 56980, 58460, 60830, 64306, 69520, 81844, 97328, 102305, 113960, 116920, 121660, 128612, 160765, 163688, 204610, 225071, 227920, 233840, 243320, 257224, 321530, 327376, 409220, 450142, 486640, 514448, 643060, 818440, 900284, 1125355, 1286120, 1636880, 1800568, 2250710, 2572240, 3601136, 4501420, 9002840, 18005680]

約数ペア:

[(1, 18005680), (2, 9002840), (4, 4501420), (5, 3601136), (7, 2572240), (8, 2250710), (10, 1800568), (11, 1636880), (14, 1286120), (16, 1125355), (20, 900284), (22, 818440), (28, 643060), (35, 514448), (37, 486640), (40, 450142), (44, 409220), (55, 327376), (56, 321530), (70, 257224), (74, 243320), (77, 233840), (79, 227920), (80, 225071), (88, 204610), (110, 163688), (112, 160765), (140, 128612), (148, 121660), (154, 116920), (158, 113960), (176, 102305), (185, 97328), (220, 81844), (259, 69520), (280, 64306), (296, 60830), (308, 58460), (316, 56980), (370, 48664), (385, 46768), (395, 45584), (407, 44240), (440, 40922), (518, 34760), (553, 32560), (560, 32153), (592, 30415), (616, 29230), (632, 28490), (740, 24332), (770, 23384), (790, 22792), (814, 22120), (869, 20720), (880, 20461), (1036, 17380), (1106, 16280), (1232, 14615), (1264, 14245), (1295, 13904), (1480, 12166), (1540, 11692), (1580, 11396), (1628, 11060), (1738, 10360), (2035, 8848), (2072, 8690), (2212, 8140), (2590, 6952), (2765, 6512), (2849, 6320), (2923, 6160), (2960, 6083), (3080, 5846), (3160, 5698), (3256, 5530), (3476, 5180), (4070, 4424), (4144, 4345)]