28380688

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 65995776

約数和(自身を除く): 37615088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 71, 83, 86, 112, 142, 166, 172, 284, 301, 332, 344, 497, 568, 581, 602, 664, 688, 994, 1136, 1162, 1204, 1328, 1988, 2324, 2408, 3053, 3569, 3976, 4648, 4816, 5893, 6106, 7138, 7952, 9296, 11786, 12212, 14276, 21371, 23572, 24424, 24983, 28552, 41251, 42742, 47144, 48848, 49966, 57104, 82502, 85484, 94288, 99932, 165004, 170968, 199864, 253399, 330008, 341936, 399728, 506798, 660016, 1013596, 1773793, 2027192, 3547586, 4054384, 7095172, 14190344, 28380688]

約数ペア:

[(1, 28380688), (2, 14190344), (4, 7095172), (7, 4054384), (8, 3547586), (14, 2027192), (16, 1773793), (28, 1013596), (43, 660016), (56, 506798), (71, 399728), (83, 341936), (86, 330008), (112, 253399), (142, 199864), (166, 170968), (172, 165004), (284, 99932), (301, 94288), (332, 85484), (344, 82502), (497, 57104), (568, 49966), (581, 48848), (602, 47144), (664, 42742), (688, 41251), (994, 28552), (1136, 24983), (1162, 24424), (1204, 23572), (1328, 21371), (1988, 14276), (2324, 12212), (2408, 11786), (3053, 9296), (3569, 7952), (3976, 7138), (4648, 6106), (4816, 5893)]