19798030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 43794432

約数和(自身を除く): 23996402

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 127, 131, 170, 238, 254, 262, 595, 635, 655, 889, 917, 1190, 1270, 1310, 1778, 1834, 2159, 2227, 4318, 4445, 4454, 4585, 8890, 9170, 10795, 11135, 15113, 15589, 16637, 21590, 22270, 30226, 31178, 33274, 75565, 77945, 83185, 116459, 151130, 155890, 166370, 232918, 282829, 565658, 582295, 1164590, 1414145, 1979803, 2828290, 3959606, 9899015, 19798030]

約数ペア:

[(1, 19798030), (2, 9899015), (5, 3959606), (7, 2828290), (10, 1979803), (14, 1414145), (17, 1164590), (34, 582295), (35, 565658), (70, 282829), (85, 232918), (119, 166370), (127, 155890), (131, 151130), (170, 116459), (238, 83185), (254, 77945), (262, 75565), (595, 33274), (635, 31178), (655, 30226), (889, 22270), (917, 21590), (1190, 16637), (1270, 15589), (1310, 15113), (1778, 11135), (1834, 10795), (2159, 9170), (2227, 8890), (4318, 4585), (4445, 4454)]