1865380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 4374720

約数和(自身を除く): 2509340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 139, 220, 244, 278, 305, 556, 610, 671, 695, 1220, 1342, 1390, 1529, 2684, 2780, 3058, 3355, 6116, 6710, 7645, 8479, 13420, 15290, 16958, 30580, 33916, 42395, 84790, 93269, 169580, 186538, 373076, 466345, 932690, 1865380]

約数ペア:

[(1, 1865380), (2, 932690), (4, 466345), (5, 373076), (10, 186538), (11, 169580), (20, 93269), (22, 84790), (44, 42395), (55, 33916), (61, 30580), (110, 16958), (122, 15290), (139, 13420), (220, 8479), (244, 7645), (278, 6710), (305, 6116), (556, 3355), (610, 3058), (671, 2780), (695, 2684), (1220, 1529), (1342, 1390)]