20508765978

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1\times {\mathrm{1289}}^1$

素因数の和:2163

約数の個数: 64

約数和(自身を含む): 42567275520

約数和(自身を除く): 22058509542

約数列:

[1, 2, 3, 6, 43, 83, 86, 129, 166, 249, 258, 498, 743, 1289, 1486, 2229, 2578, 3569, 3867, 4458, 7138, 7734, 10707, 21414, 31949, 55427, 61669, 63898, 95847, 106987, 110854, 123338, 166281, 185007, 191694, 213974, 320961, 332562, 370014, 641922, 957727, 1915454, 2651767, 2873181, 4600441, 5303534, 5746362, 7955301, 9200882, 13801323, 15910602, 27602646, 41182261, 79491341, 82364522, 123546783, 158982682, 238474023, 247093566, 476948046, 3418127663, 6836255326, 10254382989, 20508765978]

約数ペア:

[(1, 20508765978), (2, 10254382989), (3, 6836255326), (6, 3418127663), (43, 476948046), (83, 247093566), (86, 238474023), (129, 158982682), (166, 123546783), (249, 82364522), (258, 79491341), (498, 41182261), (743, 27602646), (1289, 15910602), (1486, 13801323), (2229, 9200882), (2578, 7955301), (3569, 5746362), (3867, 5303534), (4458, 4600441), (7138, 2873181), (7734, 2651767), (10707, 1915454), (21414, 957727), (31949, 641922), (55427, 370014), (61669, 332562), (63898, 320961), (95847, 213974), (106987, 191694), (110854, 185007), (123338, 166281)]