80995990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{3637}}^1$

素因数の和:3792

約数の個数: 32

約数和(自身を含む): 155589984

約数和(自身を除く): 74593994

約数列:

[1, 2, 5, 10, 17, 34, 85, 131, 170, 262, 655, 1310, 2227, 3637, 4454, 7274, 11135, 18185, 22270, 36370, 61829, 123658, 309145, 476447, 618290, 952894, 2382235, 4764470, 8099599, 16199198, 40497995, 80995990]

約数ペア:

[(1, 80995990), (2, 40497995), (5, 16199198), (10, 8099599), (17, 4764470), (34, 2382235), (85, 952894), (131, 618290), (170, 476447), (262, 309145), (655, 123658), (1310, 61829), (2227, 36370), (3637, 22270), (4454, 18185), (7274, 11135)]