278375578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 502951680

約数和(自身を除く): 224576102

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 139, 197, 221, 278, 299, 391, 394, 442, 598, 782, 1807, 2363, 2561, 3197, 3349, 3614, 4531, 4726, 5083, 5122, 6394, 6698, 9062, 10166, 27383, 30719, 41561, 43537, 54349, 54766, 58903, 61438, 77027, 83122, 87074, 108698, 117806, 154054, 355979, 465511, 629809, 706537, 711958, 931022, 1001351, 1259618, 1413074, 2002702, 6051643, 8187517, 10706753, 12103286, 16375034, 21413506, 139187789, 278375578]

約数ペア:

[(1, 278375578), (2, 139187789), (13, 21413506), (17, 16375034), (23, 12103286), (26, 10706753), (34, 8187517), (46, 6051643), (139, 2002702), (197, 1413074), (221, 1259618), (278, 1001351), (299, 931022), (391, 711958), (394, 706537), (442, 629809), (598, 465511), (782, 355979), (1807, 154054), (2363, 117806), (2561, 108698), (3197, 87074), (3349, 83122), (3614, 77027), (4531, 61438), (4726, 58903), (5083, 54766), (5122, 54349), (6394, 43537), (6698, 41561), (9062, 30719), (10166, 27383)]