7828758

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 20160000

約数和(自身を除く): 12331242

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 139, 149, 189, 278, 298, 378, 417, 447, 834, 894, 973, 1043, 1251, 1341, 1946, 2086, 2502, 2682, 2919, 3129, 3753, 4023, 5838, 6258, 7506, 8046, 8757, 9387, 17514, 18774, 20711, 26271, 28161, 41422, 52542, 56322, 62133, 124266, 144977, 186399, 289954, 372798, 434931, 559197, 869862, 1118394, 1304793, 2609586, 3914379, 7828758]

約数ペア:

[(1, 7828758), (2, 3914379), (3, 2609586), (6, 1304793), (7, 1118394), (9, 869862), (14, 559197), (18, 434931), (21, 372798), (27, 289954), (42, 186399), (54, 144977), (63, 124266), (126, 62133), (139, 56322), (149, 52542), (189, 41422), (278, 28161), (298, 26271), (378, 20711), (417, 18774), (447, 17514), (834, 9387), (894, 8757), (973, 8046), (1043, 7506), (1251, 6258), (1341, 5838), (1946, 4023), (2086, 3753), (2502, 3129), (2682, 2919)]