419798990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{140401}}^1$

素因数の和:140444

約数の個数: 32

約数和(自身を含む): 849151296

約数和(自身を除く): 429352306

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 140401, 280802, 702005, 1404010, 1825213, 3229223, 3650426, 6458446, 9126065, 16146115, 18252130, 32292230, 41979899, 83959798, 209899495, 419798990]

約数ペア:

[(1, 419798990), (2, 209899495), (5, 83959798), (10, 41979899), (13, 32292230), (23, 18252130), (26, 16146115), (46, 9126065), (65, 6458446), (115, 3650426), (130, 3229223), (230, 1825213), (299, 1404010), (598, 702005), (1495, 280802), (2990, 140401)]