90811578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2079

約数の個数: 64

約数和(自身を含む): 217510272

約数和(自身を除く): 126698694

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 53, 66, 78, 106, 143, 159, 286, 318, 429, 583, 689, 858, 1166, 1378, 1749, 1997, 2067, 3498, 3994, 4134, 5991, 7579, 11982, 15158, 21967, 22737, 25961, 43934, 45474, 51922, 65901, 77883, 105841, 131802, 155766, 211682, 285571, 317523, 571142, 635046, 856713, 1164251, 1375933, 1713426, 2328502, 2751866, 3492753, 4127799, 6985506, 8255598, 15135263, 30270526, 45405789, 90811578]

約数ペア:

[(1, 90811578), (2, 45405789), (3, 30270526), (6, 15135263), (11, 8255598), (13, 6985506), (22, 4127799), (26, 3492753), (33, 2751866), (39, 2328502), (53, 1713426), (66, 1375933), (78, 1164251), (106, 856713), (143, 635046), (159, 571142), (286, 317523), (318, 285571), (429, 211682), (583, 155766), (689, 131802), (858, 105841), (1166, 77883), (1378, 65901), (1749, 51922), (1997, 45474), (2067, 43934), (3498, 25961), (3994, 22737), (4134, 21967), (5991, 15158), (7579, 11982)]