2106940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 4937184

約数和(自身を除く): 2830244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 157, 220, 244, 305, 314, 610, 628, 671, 785, 1220, 1342, 1570, 1727, 2684, 3140, 3355, 3454, 6710, 6908, 8635, 9577, 13420, 17270, 19154, 34540, 38308, 47885, 95770, 105347, 191540, 210694, 421388, 526735, 1053470, 2106940]

約数ペア:

[(1, 2106940), (2, 1053470), (4, 526735), (5, 421388), (10, 210694), (11, 191540), (20, 105347), (22, 95770), (44, 47885), (55, 38308), (61, 34540), (110, 19154), (122, 17270), (157, 13420), (220, 9577), (244, 8635), (305, 6908), (314, 6710), (610, 3454), (628, 3355), (671, 3140), (785, 2684), (1220, 1727), (1342, 1570)]