28239588

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:833

約数の個数: 72

約数和(自身を含む): 77907648

約数和(自身を除く): 49668060

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 83, 117, 156, 166, 234, 249, 332, 468, 498, 727, 747, 996, 1079, 1454, 1494, 2158, 2181, 2908, 2988, 3237, 4316, 4362, 6474, 6543, 8724, 9451, 9711, 12948, 13086, 18902, 19422, 26172, 28353, 37804, 38844, 56706, 60341, 85059, 113412, 120682, 170118, 181023, 241364, 340236, 362046, 543069, 724092, 784433, 1086138, 1568866, 2172276, 2353299, 3137732, 4706598, 7059897, 9413196, 14119794, 28239588]

約数ペア:

[(1, 28239588), (2, 14119794), (3, 9413196), (4, 7059897), (6, 4706598), (9, 3137732), (12, 2353299), (13, 2172276), (18, 1568866), (26, 1086138), (36, 784433), (39, 724092), (52, 543069), (78, 362046), (83, 340236), (117, 241364), (156, 181023), (166, 170118), (234, 120682), (249, 113412), (332, 85059), (468, 60341), (498, 56706), (727, 38844), (747, 37804), (996, 28353), (1079, 26172), (1454, 19422), (1494, 18902), (2158, 13086), (2181, 12948), (2908, 9711), (2988, 9451), (3237, 8724), (4316, 6543), (4362, 6474)]