20512030188

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{806671}}^1$

素因数の和:806854

約数の個数: 48

約数和(自身を含む): 51859329536

約数和(自身を除く): 31347299348

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 163, 326, 489, 652, 978, 1956, 2119, 4238, 6357, 8476, 12714, 25428, 806671, 1613342, 2420013, 3226684, 4840026, 9680052, 10486723, 20973446, 31460169, 41946892, 62920338, 125840676, 131487373, 262974746, 394462119, 525949492, 788924238, 1577848476, 1709335849, 3418671698, 5128007547, 6837343396, 10256015094, 20512030188]

約数ペア:

[(1, 20512030188), (2, 10256015094), (3, 6837343396), (4, 5128007547), (6, 3418671698), (12, 1709335849), (13, 1577848476), (26, 788924238), (39, 525949492), (52, 394462119), (78, 262974746), (156, 131487373), (163, 125840676), (326, 62920338), (489, 41946892), (652, 31460169), (978, 20973446), (1956, 10486723), (2119, 9680052), (4238, 4840026), (6357, 3226684), (8476, 2420013), (12714, 1613342), (25428, 806671)]