20446480

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1951}}^1$

素因数の和:2095

約数の個数: 40

約数和(自身を含む): 47925504

約数和(自身を除く): 27479024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1951, 2096, 2620, 3902, 5240, 7804, 9755, 10480, 15608, 19510, 31216, 39020, 78040, 156080, 255581, 511162, 1022324, 1277905, 2044648, 2555810, 4089296, 5111620, 10223240, 20446480]

約数ペア:

[(1, 20446480), (2, 10223240), (4, 5111620), (5, 4089296), (8, 2555810), (10, 2044648), (16, 1277905), (20, 1022324), (40, 511162), (80, 255581), (131, 156080), (262, 78040), (524, 39020), (655, 31216), (1048, 19510), (1310, 15608), (1951, 10480), (2096, 9755), (2620, 7804), (3902, 5240)]