1254720005

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4074

約数の個数: 64

約数和(自身を含む): 2022451200

約数和(自身を除く): 767731195

約数列:

[1, 5, 7, 11, 19, 35, 43, 55, 77, 95, 133, 209, 215, 301, 385, 473, 665, 817, 1045, 1463, 1505, 2365, 3311, 3989, 4085, 5719, 7315, 8987, 16555, 19945, 27923, 28595, 43879, 44935, 62909, 75791, 139615, 171527, 219395, 307153, 314545, 378955, 530537, 833701, 857635, 1200689, 1535765, 1886797, 2652685, 3259013, 4168505, 5835907, 6003445, 9433985, 13207579, 16295065, 22813091, 29179535, 35849143, 66037895, 114065455, 179245715, 250944001, 1254720005]

約数ペア:

[(1, 1254720005), (5, 250944001), (7, 179245715), (11, 114065455), (19, 66037895), (35, 35849143), (43, 29179535), (55, 22813091), (77, 16295065), (95, 13207579), (133, 9433985), (209, 6003445), (215, 5835907), (301, 4168505), (385, 3259013), (473, 2652685), (665, 1886797), (817, 1535765), (1045, 1200689), (1463, 857635), (1505, 833701), (2365, 530537), (3311, 378955), (3989, 314545), (4085, 307153), (5719, 219395), (7315, 171527), (8987, 139615), (16555, 75791), (19945, 62909), (27923, 44935), (28595, 43879)]