215320105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3958

約数の個数: 48

約数和(自身を含む): 349638912

約数和(自身を除く): 134318807

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 121, 143, 385, 455, 605, 715, 847, 1001, 1573, 3911, 4235, 5005, 7865, 11011, 19555, 27377, 43021, 50843, 55055, 136885, 215105, 254215, 301147, 355901, 473231, 559273, 1505735, 1779505, 2366155, 2796365, 3312617, 3914911, 6152003, 16563085, 19574555, 30760015, 43064021, 215320105]

約数ペア:

[(1, 215320105), (5, 43064021), (7, 30760015), (11, 19574555), (13, 16563085), (35, 6152003), (55, 3914911), (65, 3312617), (77, 2796365), (91, 2366155), (121, 1779505), (143, 1505735), (385, 559273), (455, 473231), (605, 355901), (715, 301147), (847, 254215), (1001, 215105), (1573, 136885), (3911, 55055), (4235, 50843), (5005, 43021), (7865, 27377), (11011, 19555)]