643355895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 1321334784

約数和(自身を除く): 677978889

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 43, 65, 91, 97, 105, 113, 129, 195, 215, 273, 291, 301, 339, 455, 485, 559, 565, 645, 679, 791, 903, 1261, 1365, 1455, 1469, 1505, 1677, 1695, 2037, 2373, 2795, 3395, 3783, 3913, 3955, 4171, 4407, 4515, 4859, 6305, 7345, 8385, 8827, 10185, 10283, 10961, 11739, 11865, 12513, 14577, 18915, 19565, 20855, 22035, 24295, 26481, 29197, 30849, 32883, 34013, 44135, 51415, 54223, 54805, 58695, 62565, 63167, 72885, 76727, 87591, 102039, 132405, 142493, 145985, 154245, 162669, 164415, 170065, 189501, 230181, 271115, 315835, 379561, 383635, 427479, 437955, 442169, 471323, 510195, 712465, 813345, 947505, 997451, 1138683, 1150905, 1326507, 1413969, 1897805, 2137395, 2210845, 2356615, 2992353, 3299261, 4987255, 5693415, 6127199, 6632535, 7069845, 9897783, 14961765, 16496305, 18381597, 30635995, 42890393, 49488915, 91907985, 128671179, 214451965, 643355895]

約数ペア:

[(1, 643355895), (3, 214451965), (5, 128671179), (7, 91907985), (13, 49488915), (15, 42890393), (21, 30635995), (35, 18381597), (39, 16496305), (43, 14961765), (65, 9897783), (91, 7069845), (97, 6632535), (105, 6127199), (113, 5693415), (129, 4987255), (195, 3299261), (215, 2992353), (273, 2356615), (291, 2210845), (301, 2137395), (339, 1897805), (455, 1413969), (485, 1326507), (559, 1150905), (565, 1138683), (645, 997451), (679, 947505), (791, 813345), (903, 712465), (1261, 510195), (1365, 471323), (1455, 442169), (1469, 437955), (1505, 427479), (1677, 383635), (1695, 379561), (2037, 315835), (2373, 271115), (2795, 230181), (3395, 189501), (3783, 170065), (3913, 164415), (3955, 162669), (4171, 154245), (4407, 145985), (4515, 142493), (4859, 132405), (6305, 102039), (7345, 87591), (8385, 76727), (8827, 72885), (10185, 63167), (10283, 62565), (10961, 58695), (11739, 54805), (11865, 54223), (12513, 51415), (14577, 44135), (18915, 34013), (19565, 32883), (20855, 30849), (22035, 29197), (24295, 26481)]