64499440

素因数分解:

$2^4\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1109}}^1$

素因数の和:1849

約数の個数: 40

約数和(自身を含む): 150302880

約数和(自身を除く): 85803440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 727, 1109, 1454, 2218, 2908, 3635, 4436, 5545, 5816, 7270, 8872, 11090, 11632, 14540, 17744, 22180, 29080, 44360, 58160, 88720, 806243, 1612486, 3224972, 4031215, 6449944, 8062430, 12899888, 16124860, 32249720, 64499440]

約数ペア:

[(1, 64499440), (2, 32249720), (4, 16124860), (5, 12899888), (8, 8062430), (10, 6449944), (16, 4031215), (20, 3224972), (40, 1612486), (80, 806243), (727, 88720), (1109, 58160), (1454, 44360), (2218, 29080), (2908, 22180), (3635, 17744), (4436, 14540), (5545, 11632), (5816, 11090), (7270, 8872)]