16808740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4973}}^1$

素因数の和:5008

約数の個数: 36

約数和(自身を含む): 38230164

約数和(自身を除く): 21421424

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 4973, 9946, 19892, 24865, 49730, 64649, 99460, 129298, 258596, 323245, 646490, 840437, 1292980, 1680874, 3361748, 4202185, 8404370, 16808740]

約数ペア:

[(1, 16808740), (2, 8404370), (4, 4202185), (5, 3361748), (10, 1680874), (13, 1292980), (20, 840437), (26, 646490), (52, 323245), (65, 258596), (130, 129298), (169, 99460), (260, 64649), (338, 49730), (676, 24865), (845, 19892), (1690, 9946), (3380, 4973)]