278459360

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1811}}^1$

素因数の和:1888

約数の個数: 72

約数和(自身を含む): 680141448

約数和(自身を除く): 401682088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 961, 992, 1240, 1811, 1922, 2480, 3622, 3844, 4805, 4960, 7244, 7688, 9055, 9610, 14488, 15376, 18110, 19220, 28976, 30752, 36220, 38440, 56141, 57952, 72440, 76880, 112282, 144880, 153760, 224564, 280705, 289760, 449128, 561410, 898256, 1122820, 1740371, 1796512, 2245640, 3480742, 4491280, 6961484, 8701855, 8982560, 13922968, 17403710, 27845936, 34807420, 55691872, 69614840, 139229680, 278459360]

約数ペア:

[(1, 278459360), (2, 139229680), (4, 69614840), (5, 55691872), (8, 34807420), (10, 27845936), (16, 17403710), (20, 13922968), (31, 8982560), (32, 8701855), (40, 6961484), (62, 4491280), (80, 3480742), (124, 2245640), (155, 1796512), (160, 1740371), (248, 1122820), (310, 898256), (496, 561410), (620, 449128), (961, 289760), (992, 280705), (1240, 224564), (1811, 153760), (1922, 144880), (2480, 112282), (3622, 76880), (3844, 72440), (4805, 57952), (4960, 56141), (7244, 38440), (7688, 36220), (9055, 30752), (9610, 28976), (14488, 19220), (15376, 18110)]