258634240

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3259}}^1$

素因数の和:3313

約数の個数: 80

約数和(自身を含む): 640316160

約数和(自身を除く): 381681920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3259, 3968, 4960, 6518, 7936, 9920, 13036, 15872, 16295, 19840, 26072, 32590, 39680, 52144, 65180, 79360, 101029, 104288, 130360, 202058, 208576, 260720, 404116, 417152, 505145, 521440, 808232, 834304, 1010290, 1042880, 1616464, 1668608, 2020580, 2085760, 3232928, 4041160, 4171520, 6465856, 8082320, 8343040, 12931712, 16164640, 25863424, 32329280, 51726848, 64658560, 129317120, 258634240]

約数ペア:

[(1, 258634240), (2, 129317120), (4, 64658560), (5, 51726848), (8, 32329280), (10, 25863424), (16, 16164640), (20, 12931712), (31, 8343040), (32, 8082320), (40, 6465856), (62, 4171520), (64, 4041160), (80, 3232928), (124, 2085760), (128, 2020580), (155, 1668608), (160, 1616464), (248, 1042880), (256, 1010290), (310, 834304), (320, 808232), (496, 521440), (512, 505145), (620, 417152), (640, 404116), (992, 260720), (1240, 208576), (1280, 202058), (1984, 130360), (2480, 104288), (2560, 101029), (3259, 79360), (3968, 65180), (4960, 52144), (6518, 39680), (7936, 32590), (9920, 26072), (13036, 19840), (15872, 16295)]