64405345

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 85034880

約数和(自身を除く): 20629535

約数列:

[1, 5, 19, 37, 73, 95, 185, 251, 365, 703, 1255, 1387, 2701, 3515, 4769, 6935, 9287, 13505, 18323, 23845, 46435, 51319, 91615, 176453, 256595, 348137, 677951, 882265, 1740685, 3389755, 12881069, 64405345]

約数ペア:

[(1, 64405345), (5, 12881069), (19, 3389755), (37, 1740685), (73, 882265), (95, 677951), (185, 348137), (251, 256595), (365, 176453), (703, 91615), (1255, 51319), (1387, 46435), (2701, 23845), (3515, 18323), (4769, 13505), (6935, 9287)]