812515

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 1149120

約数和(自身を除く): 336605

約数列:

[1, 5, 11, 17, 55, 79, 85, 121, 187, 395, 605, 869, 935, 1343, 2057, 4345, 6715, 9559, 10285, 14773, 47795, 73865, 162503, 812515]

約数ペア:

[(1, 812515), (5, 162503), (11, 73865), (17, 47795), (55, 14773), (79, 10285), (85, 9559), (121, 6715), (187, 4345), (395, 2057), (605, 1343), (869, 935)]