261396408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{119687}}^1$

素因数の和:119716

約数の個数: 64

約数和(自身を含む): 804303360

約数和(自身を除く): 542906952

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 119687, 239374, 359061, 478748, 718122, 837809, 957496, 1436244, 1555931, 1675618, 2513427, 2872488, 3111862, 3351236, 4667793, 5026854, 6223724, 6702472, 9335586, 10053708, 10891517, 12447448, 18671172, 20107416, 21783034, 32674551, 37342344, 43566068, 65349102, 87132136, 130698204, 261396408]

約数ペア:

[(1, 261396408), (2, 130698204), (3, 87132136), (4, 65349102), (6, 43566068), (7, 37342344), (8, 32674551), (12, 21783034), (13, 20107416), (14, 18671172), (21, 12447448), (24, 10891517), (26, 10053708), (28, 9335586), (39, 6702472), (42, 6223724), (52, 5026854), (56, 4667793), (78, 3351236), (84, 3111862), (91, 2872488), (104, 2513427), (156, 1675618), (168, 1555931), (182, 1436244), (273, 957496), (312, 837809), (364, 718122), (546, 478748), (728, 359061), (1092, 239374), (2184, 119687)]