87920651

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 122036544

約数和(自身を除く): 34115893

約数列:

[1, 7, 13, 17, 23, 49, 91, 119, 161, 221, 299, 353, 391, 637, 833, 1127, 1547, 2093, 2471, 2737, 4589, 5083, 6001, 8119, 10829, 14651, 17297, 19159, 32123, 35581, 42007, 56833, 78013, 105547, 138023, 224861, 249067, 294049, 397831, 546091, 738829, 966161, 1794299, 3822637, 5171803, 6763127, 12560093, 87920651]

約数ペア:

[(1, 87920651), (7, 12560093), (13, 6763127), (17, 5171803), (23, 3822637), (49, 1794299), (91, 966161), (119, 738829), (161, 546091), (221, 397831), (299, 294049), (353, 249067), (391, 224861), (637, 138023), (833, 105547), (1127, 78013), (1547, 56833), (2093, 42007), (2471, 35581), (2737, 32123), (4589, 19159), (5083, 17297), (6001, 14651), (8119, 10829)]