1288310840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{480713}}^1$

素因数の和:480791

約数の個数: 32

約数和(自身を含む): 2941969680

約数和(自身を除く): 1653658840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 480713, 961426, 1922852, 2403565, 3845704, 4807130, 9614260, 19228520, 32207771, 64415542, 128831084, 161038855, 257662168, 322077710, 644155420, 1288310840]

約数ペア:

[(1, 1288310840), (2, 644155420), (4, 322077710), (5, 257662168), (8, 161038855), (10, 128831084), (20, 64415542), (40, 32207771), (67, 19228520), (134, 9614260), (268, 4807130), (335, 3845704), (536, 2403565), (670, 1922852), (1340, 961426), (2680, 480713)]