19687860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4051}}^1$

素因数の和:4075

約数の個数: 72

約数和(自身を含む): 61946976

約数和(自身を除く): 42259116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4051, 4860, 8102, 12153, 16204, 20255, 24306, 36459, 40510, 48612, 60765, 72918, 81020, 109377, 121530, 145836, 182295, 218754, 243060, 328131, 364590, 437508, 546885, 656262, 729180, 984393, 1093770, 1312524, 1640655, 1968786, 2187540, 3281310, 3937572, 4921965, 6562620, 9843930, 19687860]

約数ペア:

[(1, 19687860), (2, 9843930), (3, 6562620), (4, 4921965), (5, 3937572), (6, 3281310), (9, 2187540), (10, 1968786), (12, 1640655), (15, 1312524), (18, 1093770), (20, 984393), (27, 729180), (30, 656262), (36, 546885), (45, 437508), (54, 364590), (60, 328131), (81, 243060), (90, 218754), (108, 182295), (135, 145836), (162, 121530), (180, 109377), (243, 81020), (270, 72918), (324, 60765), (405, 48612), (486, 40510), (540, 36459), (810, 24306), (972, 20255), (1215, 16204), (1620, 12153), (2430, 8102), (4051, 4860)]