77884820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 190003968

約数和(自身を除く): 112119148

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 67, 68, 85, 130, 134, 170, 221, 260, 263, 268, 335, 340, 442, 526, 670, 871, 884, 1052, 1105, 1139, 1315, 1340, 1742, 2210, 2278, 2630, 3419, 3484, 4355, 4420, 4471, 4556, 5260, 5695, 6838, 8710, 8942, 11390, 13676, 14807, 17095, 17420, 17621, 17884, 22355, 22780, 29614, 34190, 35242, 44710, 58123, 59228, 68380, 70484, 74035, 88105, 89420, 116246, 148070, 176210, 229073, 232492, 290615, 296140, 299557, 352420, 458146, 581230, 599114, 916292, 1145365, 1162460, 1198228, 1497785, 2290730, 2995570, 3894241, 4581460, 5991140, 7788482, 15576964, 19471205, 38942410, 77884820]

約数ペア:

[(1, 77884820), (2, 38942410), (4, 19471205), (5, 15576964), (10, 7788482), (13, 5991140), (17, 4581460), (20, 3894241), (26, 2995570), (34, 2290730), (52, 1497785), (65, 1198228), (67, 1162460), (68, 1145365), (85, 916292), (130, 599114), (134, 581230), (170, 458146), (221, 352420), (260, 299557), (263, 296140), (268, 290615), (335, 232492), (340, 229073), (442, 176210), (526, 148070), (670, 116246), (871, 89420), (884, 88105), (1052, 74035), (1105, 70484), (1139, 68380), (1315, 59228), (1340, 58123), (1742, 44710), (2210, 35242), (2278, 34190), (2630, 29614), (3419, 22780), (3484, 22355), (4355, 17884), (4420, 17621), (4471, 17420), (4556, 17095), (5260, 14807), (5695, 13676), (6838, 11390), (8710, 8942)]