28928735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 42135552

約数和(自身を除く): 13206817

約数列:

[1, 5, 11, 19, 31, 47, 55, 95, 155, 209, 235, 341, 361, 517, 589, 893, 1045, 1457, 1705, 1805, 2585, 2945, 3971, 4465, 6479, 7285, 9823, 11191, 16027, 16967, 19855, 27683, 32395, 49115, 55955, 80135, 84835, 123101, 138415, 186637, 304513, 525977, 615505, 933185, 1522565, 2629885, 5785747, 28928735]

約数ペア:

[(1, 28928735), (5, 5785747), (11, 2629885), (19, 1522565), (31, 933185), (47, 615505), (55, 525977), (95, 304513), (155, 186637), (209, 138415), (235, 123101), (341, 84835), (361, 80135), (517, 55955), (589, 49115), (893, 32395), (1045, 27683), (1457, 19855), (1705, 16967), (1805, 16027), (2585, 11191), (2945, 9823), (3971, 7285), (4465, 6479)]