205428440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 551577600

約数和(自身を除く): 346149160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 79, 140, 148, 158, 185, 251, 259, 280, 296, 316, 370, 395, 502, 518, 553, 632, 740, 790, 1004, 1036, 1106, 1255, 1295, 1480, 1580, 1757, 2008, 2072, 2212, 2510, 2590, 2765, 2923, 3160, 3514, 4424, 5020, 5180, 5530, 5846, 7028, 8785, 9287, 10040, 10360, 11060, 11692, 14056, 14615, 17570, 18574, 19829, 20461, 22120, 23384, 29230, 35140, 37148, 39658, 40922, 46435, 58460, 65009, 70280, 74296, 79316, 81844, 92870, 99145, 102305, 116920, 130018, 138803, 158632, 163688, 185740, 198290, 204610, 260036, 277606, 325045, 371480, 396580, 409220, 520072, 555212, 650090, 694015, 733673, 793160, 818440, 1110424, 1300180, 1388030, 1467346, 2600360, 2776060, 2934692, 3668365, 5135711, 5552120, 5869384, 7336730, 10271422, 14673460, 20542844, 25678555, 29346920, 41085688, 51357110, 102714220, 205428440]

約数ペア:

[(1, 205428440), (2, 102714220), (4, 51357110), (5, 41085688), (7, 29346920), (8, 25678555), (10, 20542844), (14, 14673460), (20, 10271422), (28, 7336730), (35, 5869384), (37, 5552120), (40, 5135711), (56, 3668365), (70, 2934692), (74, 2776060), (79, 2600360), (140, 1467346), (148, 1388030), (158, 1300180), (185, 1110424), (251, 818440), (259, 793160), (280, 733673), (296, 694015), (316, 650090), (370, 555212), (395, 520072), (502, 409220), (518, 396580), (553, 371480), (632, 325045), (740, 277606), (790, 260036), (1004, 204610), (1036, 198290), (1106, 185740), (1255, 163688), (1295, 158632), (1480, 138803), (1580, 130018), (1757, 116920), (2008, 102305), (2072, 99145), (2212, 92870), (2510, 81844), (2590, 79316), (2765, 74296), (2923, 70280), (3160, 65009), (3514, 58460), (4424, 46435), (5020, 40922), (5180, 39658), (5530, 37148), (5846, 35140), (7028, 29230), (8785, 23384), (9287, 22120), (10040, 20461), (10360, 19829), (11060, 18574), (11692, 17570), (14056, 14615)]