1389798400

素因数分解:

$2^{10}\times 5^2\times {\mathrm{233}}^2$

素因数の和:496

約数の個数: 99

約数和(自身を含む): 3459866011

約数和(自身を除く): 2070067611

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 233, 256, 320, 400, 466, 512, 640, 800, 932, 1024, 1165, 1280, 1600, 1864, 2330, 2560, 3200, 3728, 4660, 5120, 5825, 6400, 7456, 9320, 11650, 12800, 14912, 18640, 23300, 25600, 29824, 37280, 46600, 54289, 59648, 74560, 93200, 108578, 119296, 149120, 186400, 217156, 238592, 271445, 298240, 372800, 434312, 542890, 596480, 745600, 868624, 1085780, 1192960, 1357225, 1491200, 1737248, 2171560, 2714450, 2982400, 3474496, 4343120, 5428900, 5964800, 6948992, 8686240, 10857800, 13897984, 17372480, 21715600, 27795968, 34744960, 43431200, 55591936, 69489920, 86862400, 138979840, 173724800, 277959680, 347449600, 694899200, 1389798400]

約数ペア:

[(1, 1389798400), (2, 694899200), (4, 347449600), (5, 277959680), (8, 173724800), (10, 138979840), (16, 86862400), (20, 69489920), (25, 55591936), (32, 43431200), (40, 34744960), (50, 27795968), (64, 21715600), (80, 17372480), (100, 13897984), (128, 10857800), (160, 8686240), (200, 6948992), (233, 5964800), (256, 5428900), (320, 4343120), (400, 3474496), (466, 2982400), (512, 2714450), (640, 2171560), (800, 1737248), (932, 1491200), (1024, 1357225), (1165, 1192960), (1280, 1085780), (1600, 868624), (1864, 745600), (2330, 596480), (2560, 542890), (3200, 434312), (3728, 372800), (4660, 298240), (5120, 271445), (5825, 238592), (6400, 217156), (7456, 186400), (9320, 149120), (11650, 119296), (12800, 108578), (14912, 93200), (18640, 74560), (23300, 59648), (25600, 54289), (29824, 46600)]