51028480

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:697

約数の個数: 80

約数和(自身を含む): 126491904

約数和(自身を除く): 75463424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 643, 992, 1240, 1280, 1286, 1984, 2480, 2560, 2572, 3215, 3968, 4960, 5144, 6430, 7936, 9920, 10288, 12860, 15872, 19840, 19933, 20576, 25720, 39680, 39866, 41152, 51440, 79360, 79732, 82304, 99665, 102880, 159464, 164608, 199330, 205760, 318928, 329216, 398660, 411520, 637856, 797320, 823040, 1275712, 1594640, 1646080, 2551424, 3189280, 5102848, 6378560, 10205696, 12757120, 25514240, 51028480]

約数ペア:

[(1, 51028480), (2, 25514240), (4, 12757120), (5, 10205696), (8, 6378560), (10, 5102848), (16, 3189280), (20, 2551424), (31, 1646080), (32, 1594640), (40, 1275712), (62, 823040), (64, 797320), (80, 637856), (124, 411520), (128, 398660), (155, 329216), (160, 318928), (248, 205760), (256, 199330), (310, 164608), (320, 159464), (496, 102880), (512, 99665), (620, 82304), (640, 79732), (643, 79360), (992, 51440), (1240, 41152), (1280, 39866), (1286, 39680), (1984, 25720), (2480, 20576), (2560, 19933), (2572, 19840), (3215, 15872), (3968, 12860), (4960, 10288), (5144, 9920), (6430, 7936)]