66658040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{12721}}^1$

素因数の和:12863

約数の個数: 32

約数和(自身を含む): 151137360

約数和(自身を除く): 84479320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 12721, 25442, 50884, 63605, 101768, 127210, 254420, 508840, 1666451, 3332902, 6665804, 8332255, 13331608, 16664510, 33329020, 66658040]

約数ペア:

[(1, 66658040), (2, 33329020), (4, 16664510), (5, 13331608), (8, 8332255), (10, 6665804), (20, 3332902), (40, 1666451), (131, 508840), (262, 254420), (524, 127210), (655, 101768), (1048, 63605), (1310, 50884), (2620, 25442), (5240, 12721)]