78020028

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 203400288

約数和(自身を除く): 125380260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 103, 106, 159, 206, 212, 309, 318, 397, 412, 477, 618, 636, 794, 927, 954, 1191, 1236, 1588, 1854, 1908, 2382, 3573, 3708, 4764, 5459, 7146, 10918, 14292, 16377, 21041, 21836, 32754, 40891, 42082, 49131, 63123, 65508, 81782, 84164, 98262, 122673, 126246, 163564, 189369, 196524, 245346, 252492, 368019, 378738, 490692, 736038, 757476, 1472076, 2167223, 4334446, 6501669, 8668892, 13003338, 19505007, 26006676, 39010014, 78020028]

約数ペア:

[(1, 78020028), (2, 39010014), (3, 26006676), (4, 19505007), (6, 13003338), (9, 8668892), (12, 6501669), (18, 4334446), (36, 2167223), (53, 1472076), (103, 757476), (106, 736038), (159, 490692), (206, 378738), (212, 368019), (309, 252492), (318, 245346), (397, 196524), (412, 189369), (477, 163564), (618, 126246), (636, 122673), (794, 98262), (927, 84164), (954, 81782), (1191, 65508), (1236, 63123), (1588, 49131), (1854, 42082), (1908, 40891), (2382, 32754), (3573, 21836), (3708, 21041), (4764, 16377), (5459, 14292), (7146, 10918)]