217879904

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 495839232

約数和(自身を除く): 277959328

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 41, 44, 62, 82, 88, 124, 164, 176, 248, 328, 341, 352, 451, 487, 496, 656, 682, 902, 974, 992, 1271, 1312, 1364, 1804, 1948, 2542, 2728, 3608, 3896, 5084, 5357, 5456, 7216, 7792, 10168, 10714, 10912, 13981, 14432, 15097, 15584, 19967, 20336, 21428, 27962, 30194, 39934, 40672, 42856, 55924, 60388, 79868, 85712, 111848, 120776, 159736, 166067, 171424, 219637, 223696, 241552, 319472, 332134, 439274, 447392, 483104, 618977, 638944, 664268, 878548, 1237954, 1328536, 1757096, 2475908, 2657072, 3514192, 4951816, 5314144, 6808747, 7028384, 9903632, 13617494, 19807264, 27234988, 54469976, 108939952, 217879904]

約数ペア:

[(1, 217879904), (2, 108939952), (4, 54469976), (8, 27234988), (11, 19807264), (16, 13617494), (22, 9903632), (31, 7028384), (32, 6808747), (41, 5314144), (44, 4951816), (62, 3514192), (82, 2657072), (88, 2475908), (124, 1757096), (164, 1328536), (176, 1237954), (248, 878548), (328, 664268), (341, 638944), (352, 618977), (451, 483104), (487, 447392), (496, 439274), (656, 332134), (682, 319472), (902, 241552), (974, 223696), (992, 219637), (1271, 171424), (1312, 166067), (1364, 159736), (1804, 120776), (1948, 111848), (2542, 85712), (2728, 79868), (3608, 60388), (3896, 55924), (5084, 42856), (5357, 40672), (5456, 39934), (7216, 30194), (7792, 27962), (10168, 21428), (10714, 20336), (10912, 19967), (13981, 15584), (14432, 15097)]