261566008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2143}}^1$

素因数の和:2252

約数の個数: 64

約数和(自身を含む): 571161600

約数和(自身を除く): 309595592

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 73, 76, 88, 146, 152, 209, 292, 418, 584, 803, 836, 1387, 1606, 1672, 2143, 2774, 3212, 4286, 5548, 6424, 8572, 11096, 15257, 17144, 23573, 30514, 40717, 47146, 61028, 81434, 94292, 122056, 156439, 162868, 188584, 312878, 325736, 447887, 625756, 895774, 1251512, 1720829, 1791548, 2972341, 3441658, 3583096, 5944682, 6883316, 11889364, 13766632, 23778728, 32695751, 65391502, 130783004, 261566008]

約数ペア:

[(1, 261566008), (2, 130783004), (4, 65391502), (8, 32695751), (11, 23778728), (19, 13766632), (22, 11889364), (38, 6883316), (44, 5944682), (73, 3583096), (76, 3441658), (88, 2972341), (146, 1791548), (152, 1720829), (209, 1251512), (292, 895774), (418, 625756), (584, 447887), (803, 325736), (836, 312878), (1387, 188584), (1606, 162868), (1672, 156439), (2143, 122056), (2774, 94292), (3212, 81434), (4286, 61028), (5548, 47146), (6424, 40717), (8572, 30514), (11096, 23573), (15257, 17144)]