18653800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 48434400

約数和(自身を除く): 29780600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 61, 88, 100, 110, 122, 139, 200, 220, 244, 275, 278, 305, 440, 488, 550, 556, 610, 671, 695, 1100, 1112, 1220, 1342, 1390, 1525, 1529, 2200, 2440, 2684, 2780, 3050, 3058, 3355, 3475, 5368, 5560, 6100, 6116, 6710, 6950, 7645, 8479, 12200, 12232, 13420, 13900, 15290, 16775, 16958, 26840, 27800, 30580, 33550, 33916, 38225, 42395, 61160, 67100, 67832, 76450, 84790, 93269, 134200, 152900, 169580, 186538, 211975, 305800, 339160, 373076, 423950, 466345, 746152, 847900, 932690, 1695800, 1865380, 2331725, 3730760, 4663450, 9326900, 18653800]

約数ペア:

[(1, 18653800), (2, 9326900), (4, 4663450), (5, 3730760), (8, 2331725), (10, 1865380), (11, 1695800), (20, 932690), (22, 847900), (25, 746152), (40, 466345), (44, 423950), (50, 373076), (55, 339160), (61, 305800), (88, 211975), (100, 186538), (110, 169580), (122, 152900), (139, 134200), (200, 93269), (220, 84790), (244, 76450), (275, 67832), (278, 67100), (305, 61160), (440, 42395), (488, 38225), (550, 33916), (556, 33550), (610, 30580), (671, 27800), (695, 26840), (1100, 16958), (1112, 16775), (1220, 15290), (1342, 13900), (1390, 13420), (1525, 12232), (1529, 12200), (2200, 8479), (2440, 7645), (2684, 6950), (2780, 6710), (3050, 6116), (3058, 6100), (3355, 5560), (3475, 5368)]