251330456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{22171}}^1$

素因数の和:22299

約数の個数: 32

約数和(自身を含む): 512173200

約数和(自身を除く): 260842744

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 2834, 5668, 11336, 22171, 44342, 88684, 177368, 288223, 576446, 1152892, 2305784, 2416639, 4833278, 9666556, 19333112, 31416307, 62832614, 125665228, 251330456]

約数ペア:

[(1, 251330456), (2, 125665228), (4, 62832614), (8, 31416307), (13, 19333112), (26, 9666556), (52, 4833278), (104, 2416639), (109, 2305784), (218, 1152892), (436, 576446), (872, 288223), (1417, 177368), (2834, 88684), (5668, 44342), (11336, 22171)]