201520640

素因数分解:

$2^9\times 5^1\times {\mathrm{223}}^1\times {\mathrm{353}}^1$

素因数の和:599

約数の個数: 80

約数和(自身を含む): 486718848

約数和(自身を除く): 285198208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 223, 256, 320, 353, 446, 512, 640, 706, 892, 1115, 1280, 1412, 1765, 1784, 2230, 2560, 2824, 3530, 3568, 4460, 5648, 7060, 7136, 8920, 11296, 14120, 14272, 17840, 22592, 28240, 28544, 35680, 45184, 56480, 57088, 71360, 78719, 90368, 112960, 114176, 142720, 157438, 180736, 225920, 285440, 314876, 393595, 451840, 570880, 629752, 787190, 903680, 1259504, 1574380, 2519008, 3148760, 5038016, 6297520, 10076032, 12595040, 20152064, 25190080, 40304128, 50380160, 100760320, 201520640]

約数ペア:

[(1, 201520640), (2, 100760320), (4, 50380160), (5, 40304128), (8, 25190080), (10, 20152064), (16, 12595040), (20, 10076032), (32, 6297520), (40, 5038016), (64, 3148760), (80, 2519008), (128, 1574380), (160, 1259504), (223, 903680), (256, 787190), (320, 629752), (353, 570880), (446, 451840), (512, 393595), (640, 314876), (706, 285440), (892, 225920), (1115, 180736), (1280, 157438), (1412, 142720), (1765, 114176), (1784, 112960), (2230, 90368), (2560, 78719), (2824, 71360), (3530, 57088), (3568, 56480), (4460, 45184), (5648, 35680), (7060, 28544), (7136, 28240), (8920, 22592), (11296, 17840), (14120, 14272)]