639693990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5879}}^1$

素因数の和:5939

約数の個数: 128

約数和(自身を含む): 1896652800

約数和(自身を除く): 1256958810

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 31, 39, 45, 54, 62, 65, 78, 90, 93, 117, 130, 135, 155, 186, 195, 234, 270, 279, 310, 351, 390, 403, 465, 558, 585, 702, 806, 837, 930, 1170, 1209, 1395, 1674, 1755, 2015, 2418, 2790, 3510, 3627, 4030, 4185, 5879, 6045, 7254, 8370, 10881, 11758, 12090, 17637, 18135, 21762, 29395, 35274, 36270, 52911, 54405, 58790, 76427, 88185, 105822, 108810, 152854, 158733, 176370, 182249, 229281, 264555, 317466, 364498, 382135, 458562, 529110, 546747, 687843, 764270, 793665, 911245, 1093494, 1146405, 1375686, 1587330, 1640241, 1822490, 2063529, 2292810, 2369237, 2733735, 3280482, 3439215, 4127058, 4738474, 4920723, 5467470, 6878430, 7107711, 8201205, 9841446, 10317645, 11846185, 14215422, 16402410, 20635290, 21323133, 23692370, 24603615, 35538555, 42646266, 49207230, 63969399, 71077110, 106615665, 127938798, 213231330, 319846995, 639693990]

約数ペア:

[(1, 639693990), (2, 319846995), (3, 213231330), (5, 127938798), (6, 106615665), (9, 71077110), (10, 63969399), (13, 49207230), (15, 42646266), (18, 35538555), (26, 24603615), (27, 23692370), (30, 21323133), (31, 20635290), (39, 16402410), (45, 14215422), (54, 11846185), (62, 10317645), (65, 9841446), (78, 8201205), (90, 7107711), (93, 6878430), (117, 5467470), (130, 4920723), (135, 4738474), (155, 4127058), (186, 3439215), (195, 3280482), (234, 2733735), (270, 2369237), (279, 2292810), (310, 2063529), (351, 1822490), (390, 1640241), (403, 1587330), (465, 1375686), (558, 1146405), (585, 1093494), (702, 911245), (806, 793665), (837, 764270), (930, 687843), (1170, 546747), (1209, 529110), (1395, 458562), (1674, 382135), (1755, 364498), (2015, 317466), (2418, 264555), (2790, 229281), (3510, 182249), (3627, 176370), (4030, 158733), (4185, 152854), (5879, 108810), (6045, 105822), (7254, 88185), (8370, 76427), (10881, 58790), (11758, 54405), (12090, 52911), (17637, 36270), (18135, 35274), (21762, 29395)]