161528940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4253}}^1$

素因数の和:4479

約数の個数: 72

約数和(自身を含む): 492409008

約数和(自身を除く): 330880068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 844, 1055, 1266, 1899, 2110, 2532, 3165, 3798, 4220, 4253, 6330, 7596, 8506, 9495, 12660, 12759, 17012, 18990, 21265, 25518, 37980, 38277, 42530, 51036, 63795, 76554, 85060, 127590, 153108, 191385, 255180, 382770, 765540, 897383, 1794766, 2692149, 3589532, 4486915, 5384298, 8076447, 8973830, 10768596, 13460745, 16152894, 17947660, 26921490, 32305788, 40382235, 53842980, 80764470, 161528940]

約数ペア:

[(1, 161528940), (2, 80764470), (3, 53842980), (4, 40382235), (5, 32305788), (6, 26921490), (9, 17947660), (10, 16152894), (12, 13460745), (15, 10768596), (18, 8973830), (20, 8076447), (30, 5384298), (36, 4486915), (45, 3589532), (60, 2692149), (90, 1794766), (180, 897383), (211, 765540), (422, 382770), (633, 255180), (844, 191385), (1055, 153108), (1266, 127590), (1899, 85060), (2110, 76554), (2532, 63795), (3165, 51036), (3798, 42530), (4220, 38277), (4253, 37980), (6330, 25518), (7596, 21265), (8506, 18990), (9495, 17012), (12660, 12759)]