28080640

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1567}}^1$

素因数の和:1597

約数の個数: 80

約数和(自身を含む): 76995072

約数和(自身を除く): 48914432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1567, 1792, 2240, 2560, 3134, 3584, 4480, 6268, 7835, 8960, 10969, 12536, 15670, 17920, 21938, 25072, 31340, 43876, 50144, 54845, 62680, 87752, 100288, 109690, 125360, 175504, 200576, 219380, 250720, 351008, 401152, 438760, 501440, 702016, 802304, 877520, 1002880, 1404032, 1755040, 2005760, 2808064, 3510080, 4011520, 5616128, 7020160, 14040320, 28080640]

約数ペア:

[(1, 28080640), (2, 14040320), (4, 7020160), (5, 5616128), (7, 4011520), (8, 3510080), (10, 2808064), (14, 2005760), (16, 1755040), (20, 1404032), (28, 1002880), (32, 877520), (35, 802304), (40, 702016), (56, 501440), (64, 438760), (70, 401152), (80, 351008), (112, 250720), (128, 219380), (140, 200576), (160, 175504), (224, 125360), (256, 109690), (280, 100288), (320, 87752), (448, 62680), (512, 54845), (560, 50144), (640, 43876), (896, 31340), (1120, 25072), (1280, 21938), (1567, 17920), (1792, 15670), (2240, 12536), (2560, 10969), (3134, 8960), (3584, 7835), (4480, 6268)]