20816280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1091}}^1$

素因数の和:1161

約数の個数: 96

約数和(自身を含む): 68992560

約数和(自身を除く): 48176280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 53, 60, 72, 90, 106, 120, 159, 180, 212, 265, 318, 360, 424, 477, 530, 636, 795, 954, 1060, 1091, 1272, 1590, 1908, 2120, 2182, 2385, 3180, 3273, 3816, 4364, 4770, 5455, 6360, 6546, 8728, 9540, 9819, 10910, 13092, 16365, 19080, 19638, 21820, 26184, 32730, 39276, 43640, 49095, 57823, 65460, 78552, 98190, 115646, 130920, 173469, 196380, 231292, 289115, 346938, 392760, 462584, 520407, 578230, 693876, 867345, 1040814, 1156460, 1387752, 1734690, 2081628, 2312920, 2602035, 3469380, 4163256, 5204070, 6938760, 10408140, 20816280]

約数ペア:

[(1, 20816280), (2, 10408140), (3, 6938760), (4, 5204070), (5, 4163256), (6, 3469380), (8, 2602035), (9, 2312920), (10, 2081628), (12, 1734690), (15, 1387752), (18, 1156460), (20, 1040814), (24, 867345), (30, 693876), (36, 578230), (40, 520407), (45, 462584), (53, 392760), (60, 346938), (72, 289115), (90, 231292), (106, 196380), (120, 173469), (159, 130920), (180, 115646), (212, 98190), (265, 78552), (318, 65460), (360, 57823), (424, 49095), (477, 43640), (530, 39276), (636, 32730), (795, 26184), (954, 21820), (1060, 19638), (1091, 19080), (1272, 16365), (1590, 13092), (1908, 10910), (2120, 9819), (2182, 9540), (2385, 8728), (3180, 6546), (3273, 6360), (3816, 5455), (4364, 4770)]