1999291210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{205477}}^1$

素因数の和:205630

約数の個数: 32

約数和(自身を含む): 4142436480

約数和(自身を除く): 2143145270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 9730, 205477, 410954, 1027385, 1438339, 2054770, 2876678, 7191695, 14383390, 28561303, 57122606, 142806515, 199929121, 285613030, 399858242, 999645605, 1999291210]

約数ペア:

[(1, 1999291210), (2, 999645605), (5, 399858242), (7, 285613030), (10, 199929121), (14, 142806515), (35, 57122606), (70, 28561303), (139, 14383390), (278, 7191695), (695, 2876678), (973, 2054770), (1390, 1438339), (1946, 1027385), (4865, 410954), (9730, 205477)]