20822820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 61931520

約数和(自身を除く): 41108700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 79, 92, 115, 138, 158, 191, 230, 237, 276, 316, 345, 382, 395, 460, 474, 573, 690, 764, 790, 948, 955, 1146, 1185, 1380, 1580, 1817, 1910, 2292, 2370, 2865, 3634, 3820, 4393, 4740, 5451, 5730, 7268, 8786, 9085, 10902, 11460, 13179, 15089, 17572, 18170, 21804, 21965, 26358, 27255, 30178, 36340, 43930, 45267, 52716, 54510, 60356, 65895, 75445, 87860, 90534, 109020, 131790, 150890, 181068, 226335, 263580, 301780, 347047, 452670, 694094, 905340, 1041141, 1388188, 1735235, 2082282, 3470470, 4164564, 5205705, 6940940, 10411410, 20822820]

約数ペア:

[(1, 20822820), (2, 10411410), (3, 6940940), (4, 5205705), (5, 4164564), (6, 3470470), (10, 2082282), (12, 1735235), (15, 1388188), (20, 1041141), (23, 905340), (30, 694094), (46, 452670), (60, 347047), (69, 301780), (79, 263580), (92, 226335), (115, 181068), (138, 150890), (158, 131790), (191, 109020), (230, 90534), (237, 87860), (276, 75445), (316, 65895), (345, 60356), (382, 54510), (395, 52716), (460, 45267), (474, 43930), (573, 36340), (690, 30178), (764, 27255), (790, 26358), (948, 21965), (955, 21804), (1146, 18170), (1185, 17572), (1380, 15089), (1580, 13179), (1817, 11460), (1910, 10902), (2292, 9085), (2370, 8786), (2865, 7268), (3634, 5730), (3820, 5451), (4393, 4740)]