31278940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1069}}^1$

素因数の和:1115

約数の個数: 96

約数和(自身を含む): 86284800

約数和(自身を除く): 55005860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 770, 836, 1045, 1069, 1330, 1463, 1540, 2090, 2138, 2660, 2926, 4180, 4276, 5345, 5852, 7315, 7483, 10690, 11759, 14630, 14966, 20311, 21380, 23518, 29260, 29932, 37415, 40622, 47036, 58795, 74830, 81244, 82313, 101555, 117590, 142177, 149660, 164626, 203110, 223421, 235180, 284354, 329252, 406220, 411565, 446842, 568708, 710885, 823130, 893684, 1117105, 1421770, 1563947, 1646260, 2234210, 2843540, 3127894, 4468420, 6255788, 7819735, 15639470, 31278940]

約数ペア:

[(1, 31278940), (2, 15639470), (4, 7819735), (5, 6255788), (7, 4468420), (10, 3127894), (11, 2843540), (14, 2234210), (19, 1646260), (20, 1563947), (22, 1421770), (28, 1117105), (35, 893684), (38, 823130), (44, 710885), (55, 568708), (70, 446842), (76, 411565), (77, 406220), (95, 329252), (110, 284354), (133, 235180), (140, 223421), (154, 203110), (190, 164626), (209, 149660), (220, 142177), (266, 117590), (308, 101555), (380, 82313), (385, 81244), (418, 74830), (532, 58795), (665, 47036), (770, 40622), (836, 37415), (1045, 29932), (1069, 29260), (1330, 23518), (1463, 21380), (1540, 20311), (2090, 14966), (2138, 14630), (2660, 11759), (2926, 10690), (4180, 7483), (4276, 7315), (5345, 5852)]