257580

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{53}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 825552

約数和(自身を除く): 567972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 81, 90, 106, 108, 135, 159, 162, 180, 212, 243, 265, 270, 318, 324, 405, 477, 486, 530, 540, 636, 795, 810, 954, 972, 1060, 1215, 1431, 1590, 1620, 1908, 2385, 2430, 2862, 3180, 4293, 4770, 4860, 5724, 7155, 8586, 9540, 12879, 14310, 17172, 21465, 25758, 28620, 42930, 51516, 64395, 85860, 128790, 257580]

約数ペア:

[(1, 257580), (2, 128790), (3, 85860), (4, 64395), (5, 51516), (6, 42930), (9, 28620), (10, 25758), (12, 21465), (15, 17172), (18, 14310), (20, 12879), (27, 9540), (30, 8586), (36, 7155), (45, 5724), (53, 4860), (54, 4770), (60, 4293), (81, 3180), (90, 2862), (106, 2430), (108, 2385), (135, 1908), (159, 1620), (162, 1590), (180, 1431), (212, 1215), (243, 1060), (265, 972), (270, 954), (318, 810), (324, 795), (405, 636), (477, 540), (486, 530)]