643472240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{1213}}^1$

素因数の和:1594

約数の個数: 80

約数和(自身を含む): 1580628000

約数和(自身を除く): 937155760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 349, 380, 698, 760, 1213, 1396, 1520, 1745, 2426, 2792, 3490, 4852, 5584, 6065, 6631, 6980, 9704, 12130, 13262, 13960, 19408, 23047, 24260, 26524, 27920, 33155, 46094, 48520, 53048, 66310, 92188, 97040, 106096, 115235, 132620, 184376, 230470, 265240, 368752, 423337, 460940, 530480, 846674, 921880, 1693348, 1843760, 2116685, 3386696, 4233370, 6773392, 8043403, 8466740, 16086806, 16933480, 32173612, 33866960, 40217015, 64347224, 80434030, 128694448, 160868060, 321736120, 643472240]

約数ペア:

[(1, 643472240), (2, 321736120), (4, 160868060), (5, 128694448), (8, 80434030), (10, 64347224), (16, 40217015), (19, 33866960), (20, 32173612), (38, 16933480), (40, 16086806), (76, 8466740), (80, 8043403), (95, 6773392), (152, 4233370), (190, 3386696), (304, 2116685), (349, 1843760), (380, 1693348), (698, 921880), (760, 846674), (1213, 530480), (1396, 460940), (1520, 423337), (1745, 368752), (2426, 265240), (2792, 230470), (3490, 184376), (4852, 132620), (5584, 115235), (6065, 106096), (6631, 97040), (6980, 92188), (9704, 66310), (12130, 53048), (13262, 48520), (13960, 46094), (19408, 33155), (23047, 27920), (24260, 26524)]