20681206584

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{112481}}^1$

素因数の和:112700

約数の個数: 64

約数和(自身を含む): 53127498240

約数和(自身を除く): 32446291656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 163, 188, 282, 326, 376, 489, 564, 652, 978, 1128, 1304, 1956, 3912, 7661, 15322, 22983, 30644, 45966, 61288, 91932, 112481, 183864, 224962, 337443, 449924, 674886, 899848, 1349772, 2699544, 5286607, 10573214, 15859821, 18334403, 21146428, 31719642, 36668806, 42292856, 55003209, 63439284, 73337612, 110006418, 126878568, 146675224, 220012836, 440025672, 861716941, 1723433882, 2585150823, 3446867764, 5170301646, 6893735528, 10340603292, 20681206584]

約数ペア:

[(1, 20681206584), (2, 10340603292), (3, 6893735528), (4, 5170301646), (6, 3446867764), (8, 2585150823), (12, 1723433882), (24, 861716941), (47, 440025672), (94, 220012836), (141, 146675224), (163, 126878568), (188, 110006418), (282, 73337612), (326, 63439284), (376, 55003209), (489, 42292856), (564, 36668806), (652, 31719642), (978, 21146428), (1128, 18334403), (1304, 15859821), (1956, 10573214), (3912, 5286607), (7661, 2699544), (15322, 1349772), (22983, 899848), (30644, 674886), (45966, 449924), (61288, 337443), (91932, 224962), (112481, 183864)]