388595571

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 128

約数和(自身を含む): 725630976

約数和(自身を除く): 337035405

約数列:

[1, 3, 7, 13, 17, 21, 31, 37, 39, 51, 73, 91, 93, 111, 119, 217, 219, 221, 259, 273, 357, 403, 481, 511, 527, 629, 651, 663, 777, 949, 1147, 1209, 1241, 1443, 1533, 1547, 1581, 1887, 2263, 2701, 2821, 2847, 3367, 3441, 3689, 3723, 4403, 4641, 6643, 6789, 6851, 8029, 8103, 8177, 8463, 8687, 10101, 11067, 13209, 14911, 15841, 16133, 18907, 19499, 19929, 20553, 24087, 24531, 26061, 29419, 35113, 38471, 44733, 45917, 47523, 47957, 48399, 56721, 57239, 58497, 83731, 88257, 104377, 105339, 112931, 115413, 136493, 137751, 143871, 171717, 205933, 245791, 251193, 253487, 269297, 313131, 321419, 338793, 409479, 500123, 586117, 596921, 617799, 737373, 760461, 807891, 964257, 1088503, 1423427, 1500369, 1758351, 1774409, 1790763, 3265509, 3500861, 4178447, 4270281, 5323227, 7619521, 9963989, 10502583, 12535341, 18504551, 22858563, 29891967, 55513653, 129531857, 388595571]

約数ペア:

[(1, 388595571), (3, 129531857), (7, 55513653), (13, 29891967), (17, 22858563), (21, 18504551), (31, 12535341), (37, 10502583), (39, 9963989), (51, 7619521), (73, 5323227), (91, 4270281), (93, 4178447), (111, 3500861), (119, 3265509), (217, 1790763), (219, 1774409), (221, 1758351), (259, 1500369), (273, 1423427), (357, 1088503), (403, 964257), (481, 807891), (511, 760461), (527, 737373), (629, 617799), (651, 596921), (663, 586117), (777, 500123), (949, 409479), (1147, 338793), (1209, 321419), (1241, 313131), (1443, 269297), (1533, 253487), (1547, 251193), (1581, 245791), (1887, 205933), (2263, 171717), (2701, 143871), (2821, 137751), (2847, 136493), (3367, 115413), (3441, 112931), (3689, 105339), (3723, 104377), (4403, 88257), (4641, 83731), (6643, 58497), (6789, 57239), (6851, 56721), (8029, 48399), (8103, 47957), (8177, 47523), (8463, 45917), (8687, 44733), (10101, 38471), (11067, 35113), (13209, 29419), (14911, 26061), (15841, 24531), (16133, 24087), (18907, 20553), (19499, 19929)]