28213328

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:121

約数の個数: 120

約数和(自身を含む): 69266400

約数和(自身を除く): 41053072

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 59, 76, 88, 104, 118, 121, 143, 152, 176, 208, 209, 236, 242, 247, 286, 304, 418, 472, 484, 494, 572, 649, 767, 836, 944, 968, 988, 1121, 1144, 1298, 1534, 1573, 1672, 1936, 1976, 2242, 2288, 2299, 2596, 2717, 3068, 3146, 3344, 3952, 4484, 4598, 5192, 5434, 6136, 6292, 7139, 8437, 8968, 9196, 10384, 10868, 12272, 12331, 12584, 14278, 14573, 16874, 17936, 18392, 21736, 24662, 25168, 28556, 29146, 29887, 33748, 36784, 43472, 49324, 57112, 58292, 59774, 67496, 92807, 98648, 114224, 116584, 119548, 134992, 135641, 160303, 185614, 197296, 233168, 239096, 271282, 320606, 371228, 478192, 542564, 641212, 742456, 1085128, 1282424, 1484912, 1763333, 2170256, 2564848, 3526666, 7053332, 14106664, 28213328]

約数ペア:

[(1, 28213328), (2, 14106664), (4, 7053332), (8, 3526666), (11, 2564848), (13, 2170256), (16, 1763333), (19, 1484912), (22, 1282424), (26, 1085128), (38, 742456), (44, 641212), (52, 542564), (59, 478192), (76, 371228), (88, 320606), (104, 271282), (118, 239096), (121, 233168), (143, 197296), (152, 185614), (176, 160303), (208, 135641), (209, 134992), (236, 119548), (242, 116584), (247, 114224), (286, 98648), (304, 92807), (418, 67496), (472, 59774), (484, 58292), (494, 57112), (572, 49324), (649, 43472), (767, 36784), (836, 33748), (944, 29887), (968, 29146), (988, 28556), (1121, 25168), (1144, 24662), (1298, 21736), (1534, 18392), (1573, 17936), (1672, 16874), (1936, 14573), (1976, 14278), (2242, 12584), (2288, 12331), (2299, 12272), (2596, 10868), (2717, 10384), (3068, 9196), (3146, 8968), (3344, 8437), (3952, 7139), (4484, 6292), (4598, 6136), (5192, 5434)]