28900976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 64995840

約数和(自身を除く): 36094864

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 71, 76, 103, 104, 142, 152, 206, 208, 247, 284, 304, 412, 494, 568, 824, 923, 988, 1136, 1339, 1349, 1648, 1846, 1957, 1976, 2678, 2698, 3692, 3914, 3952, 5356, 5396, 7313, 7384, 7828, 10712, 10792, 14626, 14768, 15656, 17537, 21424, 21584, 25441, 29252, 31312, 35074, 50882, 58504, 70148, 95069, 101764, 117008, 138947, 140296, 190138, 203528, 277894, 280592, 380276, 407056, 555788, 760552, 1111576, 1521104, 1806311, 2223152, 3612622, 7225244, 14450488, 28900976]

約数ペア:

[(1, 28900976), (2, 14450488), (4, 7225244), (8, 3612622), (13, 2223152), (16, 1806311), (19, 1521104), (26, 1111576), (38, 760552), (52, 555788), (71, 407056), (76, 380276), (103, 280592), (104, 277894), (142, 203528), (152, 190138), (206, 140296), (208, 138947), (247, 117008), (284, 101764), (304, 95069), (412, 70148), (494, 58504), (568, 50882), (824, 35074), (923, 31312), (988, 29252), (1136, 25441), (1339, 21584), (1349, 21424), (1648, 17537), (1846, 15656), (1957, 14768), (1976, 14626), (2678, 10792), (2698, 10712), (3692, 7828), (3914, 7384), (3952, 7313), (5356, 5396)]