71791408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 161239680

約数和(自身を除く): 89448272

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 79, 104, 136, 158, 208, 221, 257, 272, 316, 442, 514, 632, 884, 1027, 1028, 1264, 1343, 1768, 2054, 2056, 2686, 3341, 3536, 4108, 4112, 4369, 5372, 6682, 8216, 8738, 10744, 13364, 16432, 17459, 17476, 20303, 21488, 26728, 34918, 34952, 40606, 53456, 56797, 69836, 69904, 81212, 113594, 139672, 162424, 227188, 263939, 279344, 324848, 345151, 454376, 527878, 690302, 908752, 1055756, 1380604, 2111512, 2761208, 4223024, 4486963, 5522416, 8973926, 17947852, 35895704, 71791408]

約数ペア:

[(1, 71791408), (2, 35895704), (4, 17947852), (8, 8973926), (13, 5522416), (16, 4486963), (17, 4223024), (26, 2761208), (34, 2111512), (52, 1380604), (68, 1055756), (79, 908752), (104, 690302), (136, 527878), (158, 454376), (208, 345151), (221, 324848), (257, 279344), (272, 263939), (316, 227188), (442, 162424), (514, 139672), (632, 113594), (884, 81212), (1027, 69904), (1028, 69836), (1264, 56797), (1343, 53456), (1768, 40606), (2054, 34952), (2056, 34918), (2686, 26728), (3341, 21488), (3536, 20303), (4108, 17476), (4112, 17459), (4369, 16432), (5372, 13364), (6682, 10744), (8216, 8738)]