131307568

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 80

約数和(自身を含む): 305694720

約数和(自身を除く): 174387152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 59, 62, 112, 118, 124, 217, 236, 248, 413, 434, 472, 496, 641, 826, 868, 944, 1282, 1652, 1736, 1829, 2564, 3304, 3472, 3658, 4487, 5128, 6608, 7316, 8974, 10256, 12803, 14632, 17948, 19871, 25606, 29264, 35896, 37819, 39742, 51212, 71792, 75638, 79484, 102424, 139097, 151276, 158968, 204848, 264733, 278194, 302552, 317936, 529466, 556388, 605104, 1058932, 1112776, 1172389, 2117864, 2225552, 2344778, 4235728, 4689556, 8206723, 9379112, 16413446, 18758224, 32826892, 65653784, 131307568]

約数ペア:

[(1, 131307568), (2, 65653784), (4, 32826892), (7, 18758224), (8, 16413446), (14, 9379112), (16, 8206723), (28, 4689556), (31, 4235728), (56, 2344778), (59, 2225552), (62, 2117864), (112, 1172389), (118, 1112776), (124, 1058932), (217, 605104), (236, 556388), (248, 529466), (413, 317936), (434, 302552), (472, 278194), (496, 264733), (641, 204848), (826, 158968), (868, 151276), (944, 139097), (1282, 102424), (1652, 79484), (1736, 75638), (1829, 71792), (2564, 51212), (3304, 39742), (3472, 37819), (3658, 35896), (4487, 29264), (5128, 25606), (6608, 19871), (7316, 17948), (8974, 14632), (10256, 12803)]