19899695915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1\times {\mathrm{3467}}^1$

素因数の和:4883

約数の個数: 32

約数和(自身を含む): 26407848960

約数和(自身を除く): 6508153045

約数列:

[1, 5, 11, 55, 79, 395, 869, 1321, 3467, 4345, 6605, 14531, 17335, 38137, 72655, 104359, 190685, 273893, 521795, 1147949, 1369465, 3012823, 4579907, 5739745, 15064115, 22899535, 50378977, 251894885, 361812653, 1809063265, 3979939183, 19899695915]

約数ペア:

[(1, 19899695915), (5, 3979939183), (11, 1809063265), (55, 361812653), (79, 251894885), (395, 50378977), (869, 22899535), (1321, 15064115), (3467, 5739745), (4345, 4579907), (6605, 3012823), (14531, 1369465), (17335, 1147949), (38137, 521795), (72655, 273893), (104359, 190685)]