71439872

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:699

約数の個数: 80

約数和(自身を含む): 168655872

約数和(自身を除く): 97216000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 643, 868, 896, 992, 1286, 1736, 1792, 1984, 2572, 3472, 3584, 3968, 4501, 5144, 6944, 7936, 9002, 10288, 13888, 15872, 18004, 19933, 20576, 27776, 36008, 39866, 41152, 55552, 72016, 79732, 82304, 111104, 139531, 144032, 159464, 164608, 279062, 288064, 318928, 329216, 558124, 576128, 637856, 1116248, 1152256, 1275712, 2232496, 2304512, 2551424, 4464992, 5102848, 8929984, 10205696, 17859968, 35719936, 71439872]

約数ペア:

[(1, 71439872), (2, 35719936), (4, 17859968), (7, 10205696), (8, 8929984), (14, 5102848), (16, 4464992), (28, 2551424), (31, 2304512), (32, 2232496), (56, 1275712), (62, 1152256), (64, 1116248), (112, 637856), (124, 576128), (128, 558124), (217, 329216), (224, 318928), (248, 288064), (256, 279062), (434, 164608), (448, 159464), (496, 144032), (512, 139531), (643, 111104), (868, 82304), (896, 79732), (992, 72016), (1286, 55552), (1736, 41152), (1792, 39866), (1984, 36008), (2572, 27776), (3472, 20576), (3584, 19933), (3968, 18004), (4501, 15872), (5144, 13888), (6944, 10288), (7936, 9002)]