64515714.000000000

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{820789}}^1$

素因数の和:820805

約数の個数: 24

約数和(自身を含む): 275785440

約数和(自身を除く): 160874980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 820789, 1641578, 3283156, 4103945, 5745523, 8207890, 11491046, 16415780, 22982092, 28727615, 57455230, 114910460]

約数ペア:

[(1, 114910460), (2, 57455230), (4, 28727615), (5, 22982092), (7, 16415780), (10, 11491046), (14, 8207890), (20, 5745523), (28, 4103945), (35, 3283156), (70, 1641578), (140, 820789)]