640909926

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{3299}}^1$

素因数の和:3601

約数の個数: 48

約数和(自身を含む): 1427025600

約数和(自身を除く): 786115674

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 251, 258, 387, 502, 753, 774, 1506, 2259, 3299, 4518, 6598, 9897, 10793, 19794, 21586, 29691, 32379, 59382, 64758, 97137, 141857, 194274, 283714, 425571, 828049, 851142, 1276713, 1656098, 2484147, 2553426, 4968294, 7452441, 14904882, 35606107, 71212214, 106818321, 213636642, 320454963, 640909926]

約数ペア:

[(1, 640909926), (2, 320454963), (3, 213636642), (6, 106818321), (9, 71212214), (18, 35606107), (43, 14904882), (86, 7452441), (129, 4968294), (251, 2553426), (258, 2484147), (387, 1656098), (502, 1276713), (753, 851142), (774, 828049), (1506, 425571), (2259, 283714), (3299, 194274), (4518, 141857), (6598, 97137), (9897, 64758), (10793, 59382), (19794, 32379), (21586, 29691)]