1640223728

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{65171}}^1$

素因数の和:65214

約数の個数: 60

約数和(自身を含む): 3761858184

約数和(自身を除く): 2121634456

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 484, 572, 968, 1144, 1573, 1936, 2288, 3146, 6292, 12584, 25168, 65171, 130342, 260684, 521368, 716881, 847223, 1042736, 1433762, 1694446, 2867524, 3388892, 5735048, 6777784, 7885691, 9319453, 11470096, 13555568, 15771382, 18638906, 31542764, 37277812, 63085528, 74555624, 102513983, 126171056, 149111248, 205027966, 410055932, 820111864, 1640223728]

約数ペア:

[(1, 1640223728), (2, 820111864), (4, 410055932), (8, 205027966), (11, 149111248), (13, 126171056), (16, 102513983), (22, 74555624), (26, 63085528), (44, 37277812), (52, 31542764), (88, 18638906), (104, 15771382), (121, 13555568), (143, 11470096), (176, 9319453), (208, 7885691), (242, 6777784), (286, 5735048), (484, 3388892), (572, 2867524), (968, 1694446), (1144, 1433762), (1573, 1042736), (1936, 847223), (2288, 716881), (3146, 521368), (6292, 260684), (12584, 130342), (25168, 65171)]