990571521

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:606

約数の個数: 64

約数和(自身を含む): 1532805120

約数和(自身を除く): 542233599

約数列:

[1, 3, 17, 23, 41, 43, 51, 69, 123, 129, 391, 479, 697, 731, 943, 989, 1173, 1437, 1763, 2091, 2193, 2829, 2967, 5289, 8143, 11017, 16031, 16813, 19639, 20597, 24429, 29971, 33051, 40549, 48093, 50439, 58917, 61791, 89913, 121647, 187289, 333863, 350149, 451697, 473731, 561867, 689333, 844477, 1001589, 1050447, 1355091, 1421193, 2067999, 2533431, 7678849, 8053427, 14356109, 19422971, 23036547, 24160281, 43068327, 58268913, 330190507, 990571521]

約数ペア:

[(1, 990571521), (3, 330190507), (17, 58268913), (23, 43068327), (41, 24160281), (43, 23036547), (51, 19422971), (69, 14356109), (123, 8053427), (129, 7678849), (391, 2533431), (479, 2067999), (697, 1421193), (731, 1355091), (943, 1050447), (989, 1001589), (1173, 844477), (1437, 689333), (1763, 561867), (2091, 473731), (2193, 451697), (2829, 350149), (2967, 333863), (5289, 187289), (8143, 121647), (11017, 89913), (16031, 61791), (16813, 58917), (19639, 50439), (20597, 48093), (24429, 40549), (29971, 33051)]