81924580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2729}}^1$

素因数の和:2836

約数の個数: 48

約数和(自身を含む): 183456000

約数和(自身を除く): 101531420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 2729, 3002, 5458, 6004, 7505, 10916, 13645, 15010, 27290, 30020, 51851, 54580, 103702, 207404, 215591, 259255, 431182, 518510, 862364, 1037020, 1077955, 2155910, 4096229, 4311820, 8192458, 16384916, 20481145, 40962290, 81924580]

約数ペア:

[(1, 81924580), (2, 40962290), (4, 20481145), (5, 16384916), (10, 8192458), (19, 4311820), (20, 4096229), (38, 2155910), (76, 1077955), (79, 1037020), (95, 862364), (158, 518510), (190, 431182), (316, 259255), (380, 215591), (395, 207404), (790, 103702), (1501, 54580), (1580, 51851), (2729, 30020), (3002, 27290), (5458, 15010), (6004, 13645), (7505, 10916)]