399403712

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^2$

素因数の和:326

約数の個数: 84

約数和(自身を含む): 889756920

約数和(自身を除く): 490353208

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 136, 139, 152, 272, 278, 304, 323, 544, 556, 608, 646, 1088, 1112, 1216, 1292, 2224, 2363, 2584, 2641, 4448, 4726, 5168, 5282, 8896, 9452, 10336, 10564, 18904, 19321, 20672, 21128, 37808, 38642, 42256, 44897, 75616, 77284, 84512, 89794, 151232, 154568, 169024, 179588, 309136, 328457, 359176, 367099, 618272, 656914, 718352, 734198, 1236544, 1313828, 1436704, 1468396, 2627656, 2873408, 2936792, 5255312, 5873584, 6240683, 10510624, 11747168, 12481366, 21021248, 23494336, 24962732, 49925464, 99850928, 199701856, 399403712]

約数ペア:

[(1, 399403712), (2, 199701856), (4, 99850928), (8, 49925464), (16, 24962732), (17, 23494336), (19, 21021248), (32, 12481366), (34, 11747168), (38, 10510624), (64, 6240683), (68, 5873584), (76, 5255312), (136, 2936792), (139, 2873408), (152, 2627656), (272, 1468396), (278, 1436704), (304, 1313828), (323, 1236544), (544, 734198), (556, 718352), (608, 656914), (646, 618272), (1088, 367099), (1112, 359176), (1216, 328457), (1292, 309136), (2224, 179588), (2363, 169024), (2584, 154568), (2641, 151232), (4448, 89794), (4726, 84512), (5168, 77284), (5282, 75616), (8896, 44897), (9452, 42256), (10336, 38642), (10564, 37808), (18904, 21128), (19321, 20672)]