2017808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:219

約数の個数: 40

約数和(自身を含む): 4296600

約数和(自身を除く): 2278792

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 109, 178, 208, 218, 356, 436, 712, 872, 1157, 1417, 1424, 1744, 2314, 2834, 4628, 5668, 9256, 9701, 11336, 18512, 19402, 22672, 38804, 77608, 126113, 155216, 252226, 504452, 1008904, 2017808]

約数ペア:

[(1, 2017808), (2, 1008904), (4, 504452), (8, 252226), (13, 155216), (16, 126113), (26, 77608), (52, 38804), (89, 22672), (104, 19402), (109, 18512), (178, 11336), (208, 9701), (218, 9256), (356, 5668), (436, 4628), (712, 2834), (872, 2314), (1157, 1744), (1417, 1424)]