81975842

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 148055040

約数和(自身を除く): 66079198

約数列:

[1, 2, 13, 19, 26, 31, 38, 53, 62, 101, 106, 202, 247, 403, 494, 589, 689, 806, 1007, 1178, 1313, 1378, 1643, 1919, 2014, 2626, 3131, 3286, 3838, 5353, 6262, 7657, 10706, 13091, 15314, 21359, 24947, 26182, 31217, 40703, 42718, 49894, 59489, 62434, 69589, 81406, 101707, 118978, 139178, 165943, 203414, 331886, 405821, 773357, 811642, 1322191, 1546714, 2157259, 2644382, 3152917, 4314518, 6305834, 40987921, 81975842]

約数ペア:

[(1, 81975842), (2, 40987921), (13, 6305834), (19, 4314518), (26, 3152917), (31, 2644382), (38, 2157259), (53, 1546714), (62, 1322191), (101, 811642), (106, 773357), (202, 405821), (247, 331886), (403, 203414), (494, 165943), (589, 139178), (689, 118978), (806, 101707), (1007, 81406), (1178, 69589), (1313, 62434), (1378, 59489), (1643, 49894), (1919, 42718), (2014, 40703), (2626, 31217), (3131, 26182), (3286, 24947), (3838, 21359), (5353, 15314), (6262, 13091), (7657, 10706)]