278960808

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 819947520

約数和(自身を除く): 540986712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 61, 84, 122, 163, 167, 168, 183, 244, 326, 334, 366, 427, 488, 489, 501, 652, 668, 732, 854, 978, 1002, 1141, 1169, 1281, 1304, 1336, 1464, 1708, 1956, 2004, 2282, 2338, 2562, 3416, 3423, 3507, 3912, 4008, 4564, 4676, 5124, 6846, 7014, 9128, 9352, 9943, 10187, 10248, 13692, 14028, 19886, 20374, 27221, 27384, 28056, 29829, 30561, 39772, 40748, 54442, 59658, 61122, 69601, 71309, 79544, 81496, 81663, 108884, 119316, 122244, 139202, 142618, 163326, 190547, 208803, 213927, 217768, 238632, 244488, 278404, 285236, 326652, 381094, 417606, 427854, 556808, 570472, 571641, 653304, 762188, 835212, 855708, 1143282, 1524376, 1660481, 1670424, 1711416, 2286564, 3320962, 4573128, 4981443, 6641924, 9962886, 11623367, 13283848, 19925772, 23246734, 34870101, 39851544, 46493468, 69740202, 92986936, 139480404, 278960808]

約数ペア:

[(1, 278960808), (2, 139480404), (3, 92986936), (4, 69740202), (6, 46493468), (7, 39851544), (8, 34870101), (12, 23246734), (14, 19925772), (21, 13283848), (24, 11623367), (28, 9962886), (42, 6641924), (56, 4981443), (61, 4573128), (84, 3320962), (122, 2286564), (163, 1711416), (167, 1670424), (168, 1660481), (183, 1524376), (244, 1143282), (326, 855708), (334, 835212), (366, 762188), (427, 653304), (488, 571641), (489, 570472), (501, 556808), (652, 427854), (668, 417606), (732, 381094), (854, 326652), (978, 285236), (1002, 278404), (1141, 244488), (1169, 238632), (1281, 217768), (1304, 213927), (1336, 208803), (1464, 190547), (1708, 163326), (1956, 142618), (2004, 139202), (2282, 122244), (2338, 119316), (2562, 108884), (3416, 81663), (3423, 81496), (3507, 79544), (3912, 71309), (4008, 69601), (4564, 61122), (4676, 59658), (5124, 54442), (6846, 40748), (7014, 39772), (9128, 30561), (9352, 29829), (9943, 28056), (10187, 27384), (10248, 27221), (13692, 20374), (14028, 19886)]