390996879

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^2\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 673276032

約数和(自身を除く): 282279153

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 131, 169, 203, 273, 377, 393, 507, 609, 841, 917, 1131, 1183, 1703, 2523, 2639, 2751, 3549, 3799, 4901, 5109, 5887, 7917, 10933, 11397, 11921, 14703, 17661, 22139, 26593, 32799, 34307, 35763, 49387, 66417, 76531, 79779, 102921, 110171, 142129, 148161, 154973, 229593, 330513, 345709, 426387, 464919, 642031, 771197, 994903, 1037127, 1432223, 1926093, 2313591, 2984709, 4296669, 4494217, 10025561, 13482651, 18618899, 30076683, 55856697, 130332293, 390996879]

約数ペア:

[(1, 390996879), (3, 130332293), (7, 55856697), (13, 30076683), (21, 18618899), (29, 13482651), (39, 10025561), (87, 4494217), (91, 4296669), (131, 2984709), (169, 2313591), (203, 1926093), (273, 1432223), (377, 1037127), (393, 994903), (507, 771197), (609, 642031), (841, 464919), (917, 426387), (1131, 345709), (1183, 330513), (1703, 229593), (2523, 154973), (2639, 148161), (2751, 142129), (3549, 110171), (3799, 102921), (4901, 79779), (5109, 76531), (5887, 66417), (7917, 49387), (10933, 35763), (11397, 34307), (11921, 32799), (14703, 26593), (17661, 22139)]