15678877520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{74209}}^1$

素因数の和:74380

約数の個数: 80

約数和(自身を含む): 38648568000

約数和(自身を除く): 22969690480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 278, 304, 380, 556, 695, 760, 1112, 1390, 1520, 2224, 2641, 2780, 5282, 5560, 10564, 11120, 13205, 21128, 26410, 42256, 52820, 74209, 105640, 148418, 211280, 296836, 371045, 593672, 742090, 1187344, 1409971, 1484180, 2819942, 2968360, 5639884, 5936720, 7049855, 10315051, 11279768, 14099710, 20630102, 22559536, 28199420, 41260204, 51575255, 56398840, 82520408, 103150510, 112797680, 165040816, 195985969, 206301020, 391971938, 412602040, 783943876, 825204080, 979929845, 1567887752, 1959859690, 3135775504, 3919719380, 7839438760, 15678877520]

約数ペア:

[(1, 15678877520), (2, 7839438760), (4, 3919719380), (5, 3135775504), (8, 1959859690), (10, 1567887752), (16, 979929845), (19, 825204080), (20, 783943876), (38, 412602040), (40, 391971938), (76, 206301020), (80, 195985969), (95, 165040816), (139, 112797680), (152, 103150510), (190, 82520408), (278, 56398840), (304, 51575255), (380, 41260204), (556, 28199420), (695, 22559536), (760, 20630102), (1112, 14099710), (1390, 11279768), (1520, 10315051), (2224, 7049855), (2641, 5936720), (2780, 5639884), (5282, 2968360), (5560, 2819942), (10564, 1484180), (11120, 1409971), (13205, 1187344), (21128, 742090), (26410, 593672), (42256, 371045), (52820, 296836), (74209, 211280), (105640, 148418)]