130881280

素因数分解:

$2^8\times 5^1\times {\mathrm{102251}}^1$

素因数の和:102272

約数の個数: 36

約数和(自身を含む): 313504632

約数和(自身を除く): 182623352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 102251, 204502, 409004, 511255, 818008, 1022510, 1636016, 2045020, 3272032, 4090040, 6544064, 8180080, 13088128, 16360160, 26176256, 32720320, 65440640, 130881280]

約数ペア:

[(1, 130881280), (2, 65440640), (4, 32720320), (5, 26176256), (8, 16360160), (10, 13088128), (16, 8180080), (20, 6544064), (32, 4090040), (40, 3272032), (64, 2045020), (80, 1636016), (128, 1022510), (160, 818008), (256, 511255), (320, 409004), (640, 204502), (1280, 102251)]