647432828

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4275

約数の個数: 72

約数和(自身を含む): 1448254080

約数和(自身を除く): 800821252

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 289, 323, 476, 532, 578, 646, 1156, 1292, 2023, 2261, 4046, 4211, 4522, 5491, 8092, 8422, 9044, 10982, 16844, 21964, 29477, 38437, 58954, 71587, 76874, 80009, 117908, 143174, 153748, 160018, 286348, 320036, 501109, 560063, 1002218, 1120126, 1216979, 1360153, 2004436, 2240252, 2433958, 2720306, 4867916, 5440612, 8518853, 9521071, 17037706, 19042142, 23122601, 34075412, 38084284, 46245202, 92490404, 161858207, 323716414, 647432828]

約数ペア:

[(1, 647432828), (2, 323716414), (4, 161858207), (7, 92490404), (14, 46245202), (17, 38084284), (19, 34075412), (28, 23122601), (34, 19042142), (38, 17037706), (68, 9521071), (76, 8518853), (119, 5440612), (133, 4867916), (238, 2720306), (266, 2433958), (289, 2240252), (323, 2004436), (476, 1360153), (532, 1216979), (578, 1120126), (646, 1002218), (1156, 560063), (1292, 501109), (2023, 320036), (2261, 286348), (4046, 160018), (4211, 153748), (4522, 143174), (5491, 117908), (8092, 80009), (8422, 76874), (9044, 71587), (10982, 58954), (16844, 38437), (21964, 29477)]