12290420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4691}}^1$

素因数の和:4831

約数の個数: 24

約数和(自身を含む): 26012448

約数和(自身を除く): 13722028

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4691, 9382, 18764, 23455, 46910, 93820, 614521, 1229042, 2458084, 3072605, 6145210, 12290420]

約数ペア:

[(1, 12290420), (2, 6145210), (4, 3072605), (5, 2458084), (10, 1229042), (20, 614521), (131, 93820), (262, 46910), (524, 23455), (655, 18764), (1310, 9382), (2620, 4691)]