20406712

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 39347280

約数和(自身を除く): 18940568

約数列:

[1, 2, 4, 8, 73, 83, 146, 166, 292, 332, 421, 584, 664, 842, 1684, 3368, 6059, 12118, 24236, 30733, 34943, 48472, 61466, 69886, 122932, 139772, 245864, 279544, 2550839, 5101678, 10203356, 20406712]

約数ペア:

[(1, 20406712), (2, 10203356), (4, 5101678), (8, 2550839), (73, 279544), (83, 245864), (146, 139772), (166, 122932), (292, 69886), (332, 61466), (421, 48472), (584, 34943), (664, 30733), (842, 24236), (1684, 12118), (3368, 6059)]