281173761

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1036

約数の個数: 80

約数和(自身を含む): 511220160

約数和(自身を除く): 230046399

約数列:

[1, 3, 9, 11, 17, 19, 27, 33, 51, 57, 81, 99, 153, 171, 187, 209, 297, 323, 459, 513, 561, 627, 891, 969, 977, 1377, 1539, 1683, 1881, 2907, 2931, 3553, 5049, 5643, 8721, 8793, 10659, 10747, 15147, 16609, 16929, 18563, 26163, 26379, 31977, 32241, 49827, 55689, 79137, 95931, 96723, 149481, 167067, 182699, 204193, 287793, 290169, 315571, 448443, 501201, 548097, 612579, 870507, 946713, 1345329, 1503603, 1644291, 1837737, 2840139, 3471281, 4932873, 5513211, 8520417, 10413843, 14798619, 16539633, 25561251, 31241529, 93724587, 281173761]

約数ペア:

[(1, 281173761), (3, 93724587), (9, 31241529), (11, 25561251), (17, 16539633), (19, 14798619), (27, 10413843), (33, 8520417), (51, 5513211), (57, 4932873), (81, 3471281), (99, 2840139), (153, 1837737), (171, 1644291), (187, 1503603), (209, 1345329), (297, 946713), (323, 870507), (459, 612579), (513, 548097), (561, 501201), (627, 448443), (891, 315571), (969, 290169), (977, 287793), (1377, 204193), (1539, 182699), (1683, 167067), (1881, 149481), (2907, 96723), (2931, 95931), (3553, 79137), (5049, 55689), (5643, 49827), (8721, 32241), (8793, 31977), (10659, 26379), (10747, 26163), (15147, 18563), (16609, 16929)]