213634640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86143}}^1$

素因数の和:86187

約数の個数: 40

約数和(自身を含む): 512729088

約数和(自身を除く): 299094448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 86143, 172286, 344572, 430715, 689144, 861430, 1378288, 1722860, 2670433, 3445720, 5340866, 6891440, 10681732, 13352165, 21363464, 26704330, 42726928, 53408660, 106817320, 213634640]

約数ペア:

[(1, 213634640), (2, 106817320), (4, 53408660), (5, 42726928), (8, 26704330), (10, 21363464), (16, 13352165), (20, 10681732), (31, 6891440), (40, 5340866), (62, 3445720), (80, 2670433), (124, 1722860), (155, 1378288), (248, 861430), (310, 689144), (496, 430715), (620, 344572), (1240, 172286), (2480, 86143)]