257661010

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{8761}}^1$

素因数の和:8958

約数の個数: 32

約数和(自身を含む): 493966512

約数和(自身を除く): 236305502

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 173, 346, 865, 1730, 2941, 5882, 8761, 14705, 17522, 29410, 43805, 87610, 148937, 297874, 744685, 1489370, 1515653, 3031306, 7578265, 15156530, 25766101, 51532202, 128830505, 257661010]

約数ペア:

[(1, 257661010), (2, 128830505), (5, 51532202), (10, 25766101), (17, 15156530), (34, 7578265), (85, 3031306), (170, 1515653), (173, 1489370), (346, 744685), (865, 297874), (1730, 148937), (2941, 87610), (5882, 43805), (8761, 29410), (14705, 17522)]