72278857

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:333

約数の個数: 24

約数和(自身を含む): 87595200

約数和(自身を除く): 15316343

約数列:

[1, 7, 23, 131, 149, 161, 529, 917, 1043, 3013, 3427, 3703, 19519, 21091, 23989, 69299, 78821, 136633, 448937, 485093, 551747, 3142559, 10325551, 72278857]

約数ペア:

[(1, 72278857), (7, 10325551), (23, 3142559), (131, 551747), (149, 485093), (161, 448937), (529, 136633), (917, 78821), (1043, 69299), (3013, 23989), (3427, 21091), (3703, 19519)]