20109452

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 41416704

約数和(自身を除く): 21307252

約数列:

[1, 2, 4, 11, 22, 23, 31, 44, 46, 62, 92, 124, 253, 341, 506, 641, 682, 713, 1012, 1282, 1364, 1426, 2564, 2852, 7051, 7843, 14102, 14743, 15686, 19871, 28204, 29486, 31372, 39742, 58972, 79484, 162173, 218581, 324346, 437162, 457033, 648692, 874324, 914066, 1828132, 5027363, 10054726, 20109452]

約数ペア:

[(1, 20109452), (2, 10054726), (4, 5027363), (11, 1828132), (22, 914066), (23, 874324), (31, 648692), (44, 457033), (46, 437162), (62, 324346), (92, 218581), (124, 162173), (253, 79484), (341, 58972), (506, 39742), (641, 31372), (682, 29486), (713, 28204), (1012, 19871), (1282, 15686), (1364, 14743), (1426, 14102), (2564, 7843), (2852, 7051)]