81950960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11257}}^1$

素因数の和:11290

約数の個数: 80

約数和(自身を含む): 234526656

約数和(自身を除く): 152575696

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 11257, 22514, 45028, 56285, 78799, 90056, 112570, 146341, 157598, 180112, 225140, 292682, 315196, 393995, 450280, 585364, 630392, 731705, 787990, 900560, 1024387, 1170728, 1260784, 1463410, 1575980, 2048774, 2341456, 2926820, 3151960, 4097548, 5121935, 5853640, 6303920, 8195096, 10243870, 11707280, 16390192, 20487740, 40975480, 81950960]

約数ペア:

[(1, 81950960), (2, 40975480), (4, 20487740), (5, 16390192), (7, 11707280), (8, 10243870), (10, 8195096), (13, 6303920), (14, 5853640), (16, 5121935), (20, 4097548), (26, 3151960), (28, 2926820), (35, 2341456), (40, 2048774), (52, 1575980), (56, 1463410), (65, 1260784), (70, 1170728), (80, 1024387), (91, 900560), (104, 787990), (112, 731705), (130, 630392), (140, 585364), (182, 450280), (208, 393995), (260, 315196), (280, 292682), (364, 225140), (455, 180112), (520, 157598), (560, 146341), (728, 112570), (910, 90056), (1040, 78799), (1456, 56285), (1820, 45028), (3640, 22514), (7280, 11257)]