78201640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{797}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 193052160

約数和(自身を除く): 114850520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 440, 446, 797, 892, 1115, 1594, 1784, 2230, 2453, 3188, 3985, 4460, 4906, 6376, 7970, 8767, 8920, 9812, 12265, 15940, 17534, 19624, 24530, 31880, 35068, 43835, 49060, 70136, 87670, 98120, 175340, 177731, 350680, 355462, 710924, 888655, 1421848, 1777310, 1955041, 3554620, 3910082, 7109240, 7820164, 9775205, 15640328, 19550410, 39100820, 78201640]

約数ペア:

[(1, 78201640), (2, 39100820), (4, 19550410), (5, 15640328), (8, 9775205), (10, 7820164), (11, 7109240), (20, 3910082), (22, 3554620), (40, 1955041), (44, 1777310), (55, 1421848), (88, 888655), (110, 710924), (220, 355462), (223, 350680), (440, 177731), (446, 175340), (797, 98120), (892, 87670), (1115, 70136), (1594, 49060), (1784, 43835), (2230, 35068), (2453, 31880), (3188, 24530), (3985, 19624), (4460, 17534), (4906, 15940), (6376, 12265), (7970, 9812), (8767, 8920)]