128580491420

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1427}}^1\times {\mathrm{16033}}^1$

素因数の和:17750

約数の個数: 48

約数和(自身を含む): 271186761888

約数和(自身を除く): 142606270468

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 1427, 2810, 2854, 5620, 5708, 7135, 14270, 16033, 28540, 32066, 64132, 80165, 160330, 320660, 400987, 801974, 1603948, 2004935, 4009870, 4505273, 8019740, 9010546, 18021092, 22526365, 22879091, 45052730, 45758182, 90105460, 91516364, 114395455, 228790910, 457581820, 6429024571, 12858049142, 25716098284, 32145122855, 64290245710, 128580491420]

約数ペア:

[(1, 128580491420), (2, 64290245710), (4, 32145122855), (5, 25716098284), (10, 12858049142), (20, 6429024571), (281, 457581820), (562, 228790910), (1124, 114395455), (1405, 91516364), (1427, 90105460), (2810, 45758182), (2854, 45052730), (5620, 22879091), (5708, 22526365), (7135, 18021092), (14270, 9010546), (16033, 8019740), (28540, 4505273), (32066, 4009870), (64132, 2004935), (80165, 1603948), (160330, 801974), (320660, 400987)]