261063680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{50989}}^1$

素因数の和:51014

約数の個数: 44

約数和(自身を含む): 626259180

約数和(自身を除く): 365195500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 50989, 101978, 203956, 254945, 407912, 509890, 815824, 1019780, 1631648, 2039560, 3263296, 4079120, 6526592, 8158240, 13053184, 16316480, 26106368, 32632960, 52212736, 65265920, 130531840, 261063680]

約数ペア:

[(1, 261063680), (2, 130531840), (4, 65265920), (5, 52212736), (8, 32632960), (10, 26106368), (16, 16316480), (20, 13053184), (32, 8158240), (40, 6526592), (64, 4079120), (80, 3263296), (128, 2039560), (160, 1631648), (256, 1019780), (320, 815824), (512, 509890), (640, 407912), (1024, 254945), (1280, 203956), (2560, 101978), (5120, 50989)]