280303478

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 532267008

約数和(自身を除く): 251963530

約数列:

[1, 2, 7, 13, 14, 26, 67, 91, 127, 134, 181, 182, 254, 362, 469, 871, 889, 938, 1267, 1651, 1742, 1778, 2353, 2534, 3302, 4706, 6097, 8509, 11557, 12127, 12194, 16471, 17018, 22987, 23114, 24254, 32942, 45974, 59563, 84889, 110617, 119126, 157651, 160909, 169778, 221234, 298831, 315302, 321818, 597662, 774319, 1103557, 1540129, 1548638, 2091817, 2207114, 3080258, 4183634, 10780903, 20021677, 21561806, 40043354, 140151739, 280303478]

約数ペア:

[(1, 280303478), (2, 140151739), (7, 40043354), (13, 21561806), (14, 20021677), (26, 10780903), (67, 4183634), (91, 3080258), (127, 2207114), (134, 2091817), (181, 1548638), (182, 1540129), (254, 1103557), (362, 774319), (469, 597662), (871, 321818), (889, 315302), (938, 298831), (1267, 221234), (1651, 169778), (1742, 160909), (1778, 157651), (2353, 119126), (2534, 110617), (3302, 84889), (4706, 59563), (6097, 45974), (8509, 32942), (11557, 24254), (12127, 23114), (12194, 22987), (16471, 17018)]