278792486

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1389

約数の個数: 64

約数和(自身を含む): 540794880

約数和(自身を除く): 262002394

約数列:

[1, 2, 7, 14, 17, 29, 31, 34, 58, 62, 119, 203, 217, 238, 406, 434, 493, 527, 899, 986, 1054, 1303, 1798, 2606, 3451, 3689, 6293, 6902, 7378, 9121, 12586, 15283, 18242, 22151, 30566, 37787, 40393, 44302, 75574, 80786, 106981, 155057, 213962, 264509, 282751, 310114, 529018, 565502, 642379, 686681, 1171397, 1284758, 1373362, 2342794, 4496653, 4806767, 8199779, 8993306, 9613534, 16399558, 19913749, 39827498, 139396243, 278792486]

約数ペア:

[(1, 278792486), (2, 139396243), (7, 39827498), (14, 19913749), (17, 16399558), (29, 9613534), (31, 8993306), (34, 8199779), (58, 4806767), (62, 4496653), (119, 2342794), (203, 1373362), (217, 1284758), (238, 1171397), (406, 686681), (434, 642379), (493, 565502), (527, 529018), (899, 310114), (986, 282751), (1054, 264509), (1303, 213962), (1798, 155057), (2606, 106981), (3451, 80786), (3689, 75574), (6293, 44302), (6902, 40393), (7378, 37787), (9121, 30566), (12586, 22151), (15283, 18242)]