1520994447

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1567}}^1$

素因数の和:1689

約数の個数: 72

約数和(自身を含む): 2676989952

約数和(自身を除く): 1155995505

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 71, 93, 147, 213, 217, 279, 441, 497, 639, 651, 1491, 1519, 1567, 1953, 2201, 3479, 4473, 4557, 4701, 6603, 10437, 10969, 13671, 14103, 15407, 19809, 31311, 32907, 46221, 48577, 76783, 98721, 107849, 111257, 138663, 145731, 230349, 323547, 333771, 340039, 437193, 691047, 778799, 970641, 1001313, 1020117, 2336397, 2380273, 3060351, 3448967, 5451593, 7009191, 7140819, 10346901, 16354779, 21422457, 24142769, 31040703, 49064337, 72428307, 168999383, 217284921, 506998149, 1520994447]

約数ペア:

[(1, 1520994447), (3, 506998149), (7, 217284921), (9, 168999383), (21, 72428307), (31, 49064337), (49, 31040703), (63, 24142769), (71, 21422457), (93, 16354779), (147, 10346901), (213, 7140819), (217, 7009191), (279, 5451593), (441, 3448967), (497, 3060351), (639, 2380273), (651, 2336397), (1491, 1020117), (1519, 1001313), (1567, 970641), (1953, 778799), (2201, 691047), (3479, 437193), (4473, 340039), (4557, 333771), (4701, 323547), (6603, 230349), (10437, 145731), (10969, 138663), (13671, 111257), (14103, 107849), (15407, 98721), (19809, 76783), (31311, 48577), (32907, 46221)]