78481280

素因数分解:

$2^7\times 5^1\times {\mathrm{149}}^1\times {\mathrm{823}}^1$

素因数の和:991

約数の個数: 64

約数和(自身を含む): 189108000

約数和(自身を除く): 110626720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 149, 160, 298, 320, 596, 640, 745, 823, 1192, 1490, 1646, 2384, 2980, 3292, 4115, 4768, 5960, 6584, 8230, 9536, 11920, 13168, 16460, 19072, 23840, 26336, 32920, 47680, 52672, 65840, 95360, 105344, 122627, 131680, 245254, 263360, 490508, 526720, 613135, 981016, 1226270, 1962032, 2452540, 3924064, 4905080, 7848128, 9810160, 15696256, 19620320, 39240640, 78481280]

約数ペア:

[(1, 78481280), (2, 39240640), (4, 19620320), (5, 15696256), (8, 9810160), (10, 7848128), (16, 4905080), (20, 3924064), (32, 2452540), (40, 1962032), (64, 1226270), (80, 981016), (128, 613135), (149, 526720), (160, 490508), (298, 263360), (320, 245254), (596, 131680), (640, 122627), (745, 105344), (823, 95360), (1192, 65840), (1490, 52672), (1646, 47680), (2384, 32920), (2980, 26336), (3292, 23840), (4115, 19072), (4768, 16460), (5960, 13168), (6584, 11920), (8230, 9536)]