20160232720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{787}}^1\times {\mathrm{887}}^1$

素因数の和:1725

約数の個数: 120

約数和(自身を含む): 49588058304

約数和(自身を除く): 29427825584

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 787, 887, 1444, 1520, 1574, 1774, 1805, 2888, 3148, 3548, 3610, 3935, 4435, 5776, 6296, 7096, 7220, 7870, 8870, 12592, 14192, 14440, 14953, 15740, 16853, 17740, 28880, 29906, 31480, 33706, 35480, 59812, 62960, 67412, 70960, 74765, 84265, 119624, 134824, 149530, 168530, 239248, 269648, 284107, 299060, 320207, 337060, 568214, 598120, 640414, 674120, 698069, 1136428, 1196240, 1280828, 1348240, 1396138, 1420535, 1601035, 2272856, 2561656, 2792276, 2841070, 3202070, 3490345, 4545712, 5123312, 5584552, 5682140, 6404140, 6980690, 11169104, 11364280, 12808280, 13263311, 13961380, 22728560, 25616560, 26526622, 27922760, 53053244, 55845520, 66316555, 106106488, 132633110, 212212976, 252002909, 265266220, 504005818, 530532440, 1008011636, 1061064880, 1260014545, 2016023272, 2520029090, 4032046544, 5040058180, 10080116360, 20160232720]

約数ペア:

[(1, 20160232720), (2, 10080116360), (4, 5040058180), (5, 4032046544), (8, 2520029090), (10, 2016023272), (16, 1260014545), (19, 1061064880), (20, 1008011636), (38, 530532440), (40, 504005818), (76, 265266220), (80, 252002909), (95, 212212976), (152, 132633110), (190, 106106488), (304, 66316555), (361, 55845520), (380, 53053244), (722, 27922760), (760, 26526622), (787, 25616560), (887, 22728560), (1444, 13961380), (1520, 13263311), (1574, 12808280), (1774, 11364280), (1805, 11169104), (2888, 6980690), (3148, 6404140), (3548, 5682140), (3610, 5584552), (3935, 5123312), (4435, 4545712), (5776, 3490345), (6296, 3202070), (7096, 2841070), (7220, 2792276), (7870, 2561656), (8870, 2272856), (12592, 1601035), (14192, 1420535), (14440, 1396138), (14953, 1348240), (15740, 1280828), (16853, 1196240), (17740, 1136428), (28880, 698069), (29906, 674120), (31480, 640414), (33706, 598120), (35480, 568214), (59812, 337060), (62960, 320207), (67412, 299060), (70960, 284107), (74765, 269648), (84265, 239248), (119624, 168530), (134824, 149530)]