81668986

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 73851014

約数列:

[1, 2, 7, 14, 17, 34, 47, 49, 94, 98, 119, 149, 238, 298, 329, 343, 658, 686, 799, 833, 1043, 1598, 1666, 2086, 2303, 2533, 4606, 5066, 5593, 5831, 7003, 7301, 11186, 11662, 14006, 14602, 16121, 17731, 32242, 35462, 39151, 49021, 51107, 78302, 98042, 102214, 119051, 124117, 238102, 248234, 274057, 343147, 548114, 686294, 833357, 868819, 1666714, 1737638, 2402029, 4804058, 5833499, 11666998, 40834493, 81668986]

約数ペア:

[(1, 81668986), (2, 40834493), (7, 11666998), (14, 5833499), (17, 4804058), (34, 2402029), (47, 1737638), (49, 1666714), (94, 868819), (98, 833357), (119, 686294), (149, 548114), (238, 343147), (298, 274057), (329, 248234), (343, 238102), (658, 124117), (686, 119051), (799, 102214), (833, 98042), (1043, 78302), (1598, 51107), (1666, 49021), (2086, 39151), (2303, 35462), (2533, 32242), (4606, 17731), (5066, 16121), (5593, 14602), (5831, 14006), (7003, 11662), (7301, 11186)]