20387700

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{839}}^1$

素因数の和:868

約数の個数: 108

約数和(自身を含む): 66349920

約数和(自身を除く): 45962220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 810, 839, 900, 972, 1215, 1350, 1620, 1678, 2025, 2430, 2517, 2700, 3356, 4050, 4195, 4860, 5034, 6075, 7551, 8100, 8390, 10068, 12150, 12585, 15102, 16780, 20975, 22653, 24300, 25170, 30204, 37755, 41950, 45306, 50340, 62925, 67959, 75510, 83900, 90612, 113265, 125850, 135918, 151020, 188775, 203877, 226530, 251700, 271836, 339795, 377550, 407754, 453060, 566325, 679590, 755100, 815508, 1019385, 1132650, 1359180, 1698975, 2038770, 2265300, 3397950, 4077540, 5096925, 6795900, 10193850, 20387700]

約数ペア:

[(1, 20387700), (2, 10193850), (3, 6795900), (4, 5096925), (5, 4077540), (6, 3397950), (9, 2265300), (10, 2038770), (12, 1698975), (15, 1359180), (18, 1132650), (20, 1019385), (25, 815508), (27, 755100), (30, 679590), (36, 566325), (45, 453060), (50, 407754), (54, 377550), (60, 339795), (75, 271836), (81, 251700), (90, 226530), (100, 203877), (108, 188775), (135, 151020), (150, 135918), (162, 125850), (180, 113265), (225, 90612), (243, 83900), (270, 75510), (300, 67959), (324, 62925), (405, 50340), (450, 45306), (486, 41950), (540, 37755), (675, 30204), (810, 25170), (839, 24300), (900, 22653), (972, 20975), (1215, 16780), (1350, 15102), (1620, 12585), (1678, 12150), (2025, 10068), (2430, 8390), (2517, 8100), (2700, 7551), (3356, 6075), (4050, 5034), (4195, 4860)]