19658540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4703}}^1$

素因数の和:4742

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 27757780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4703, 9406, 18812, 23515, 47030, 51733, 89357, 94060, 103466, 178714, 206932, 258665, 357428, 446785, 517330, 893570, 982927, 1034660, 1787140, 1965854, 3931708, 4914635, 9829270, 19658540]

約数ペア:

[(1, 19658540), (2, 9829270), (4, 4914635), (5, 3931708), (10, 1965854), (11, 1787140), (19, 1034660), (20, 982927), (22, 893570), (38, 517330), (44, 446785), (55, 357428), (76, 258665), (95, 206932), (110, 178714), (190, 103466), (209, 94060), (220, 89357), (380, 51733), (418, 47030), (836, 23515), (1045, 18812), (2090, 9406), (4180, 4703)]