20655960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13241}}^1$

素因数の和:13268

約数の個数: 64

約数和(自身を含む): 66739680

約数和(自身を除く): 46083720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13241, 26482, 39723, 52964, 66205, 79446, 105928, 132410, 158892, 172133, 198615, 264820, 317784, 344266, 397230, 516399, 529640, 688532, 794460, 860665, 1032798, 1377064, 1588920, 1721330, 2065596, 2581995, 3442660, 4131192, 5163990, 6885320, 10327980, 20655960]

約数ペア:

[(1, 20655960), (2, 10327980), (3, 6885320), (4, 5163990), (5, 4131192), (6, 3442660), (8, 2581995), (10, 2065596), (12, 1721330), (13, 1588920), (15, 1377064), (20, 1032798), (24, 860665), (26, 794460), (30, 688532), (39, 529640), (40, 516399), (52, 397230), (60, 344266), (65, 317784), (78, 264820), (104, 198615), (120, 172133), (130, 158892), (156, 132410), (195, 105928), (260, 79446), (312, 66205), (390, 52964), (520, 39723), (780, 26482), (1560, 13241)]