1291212965

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{691}}^1$

素因数の和:1002

約数の個数: 48

約数和(自身を含む): 1874378880

約数和(自身を除く): 583165915

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 263, 691, 1015, 1315, 1421, 1841, 3455, 4837, 7105, 7627, 9205, 12887, 20039, 24185, 33859, 38135, 53389, 64435, 100195, 140273, 169295, 181733, 266945, 373723, 701365, 908665, 981911, 1272131, 1868615, 4909555, 5270257, 6360655, 8904917, 26351285, 36891799, 44524585, 184458995, 258242593, 1291212965]

約数ペア:

[(1, 1291212965), (5, 258242593), (7, 184458995), (29, 44524585), (35, 36891799), (49, 26351285), (145, 8904917), (203, 6360655), (245, 5270257), (263, 4909555), (691, 1868615), (1015, 1272131), (1315, 981911), (1421, 908665), (1841, 701365), (3455, 373723), (4837, 266945), (7105, 181733), (7627, 169295), (9205, 140273), (12887, 100195), (20039, 64435), (24185, 53389), (33859, 38135)]