20165572

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 42561792

約数和(自身を除く): 22396220

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 173, 181, 322, 346, 362, 644, 692, 724, 1211, 1267, 2422, 2534, 3979, 4163, 4844, 5068, 7958, 8326, 15916, 16652, 27853, 29141, 31313, 55706, 58282, 62626, 111412, 116564, 125252, 219191, 438382, 720199, 876764, 1440398, 2880796, 5041393, 10082786, 20165572]

約数ペア:

[(1, 20165572), (2, 10082786), (4, 5041393), (7, 2880796), (14, 1440398), (23, 876764), (28, 720199), (46, 438382), (92, 219191), (161, 125252), (173, 116564), (181, 111412), (322, 62626), (346, 58282), (362, 55706), (644, 31313), (692, 29141), (724, 27853), (1211, 16652), (1267, 15916), (2422, 8326), (2534, 7958), (3979, 5068), (4163, 4844)]