274998590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{1721}}^1$

素因数の和:1805

約数の個数: 48

約数和(自身を含む): 539950320

約数和(自身を除く): 264951730

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 841, 1102, 1682, 1721, 2755, 3442, 4205, 5510, 8410, 8605, 15979, 17210, 31958, 32699, 49909, 65398, 79895, 99818, 159790, 163495, 249545, 326990, 499090, 948271, 1447361, 1896542, 2894722, 4741355, 7236805, 9482710, 14473610, 27499859, 54999718, 137499295, 274998590]

約数ペア:

[(1, 274998590), (2, 137499295), (5, 54999718), (10, 27499859), (19, 14473610), (29, 9482710), (38, 7236805), (58, 4741355), (95, 2894722), (145, 1896542), (190, 1447361), (290, 948271), (551, 499090), (841, 326990), (1102, 249545), (1682, 163495), (1721, 159790), (2755, 99818), (3442, 79895), (4205, 65398), (5510, 49909), (8410, 32699), (8605, 31958), (15979, 17210)]