178738990

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{1789}}^1$

素因数の和:1996

約数の個数: 32

約数和(自身を含む): 328386240

約数和(自身を除く): 149647250

約数列:

[1, 2, 5, 10, 97, 103, 194, 206, 485, 515, 970, 1030, 1789, 3578, 8945, 9991, 17890, 19982, 49955, 99910, 173533, 184267, 347066, 368534, 867665, 921335, 1735330, 1842670, 17873899, 35747798, 89369495, 178738990]

約数ペア:

[(1, 178738990), (2, 89369495), (5, 35747798), (10, 17873899), (97, 1842670), (103, 1735330), (194, 921335), (206, 867665), (485, 368534), (515, 347066), (970, 184267), (1030, 173533), (1789, 99910), (3578, 49955), (8945, 19982), (9991, 17890)]