28141308

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 77296128

約数和(自身を除く): 49154820

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 157, 234, 314, 383, 468, 471, 628, 766, 942, 1149, 1413, 1532, 1884, 2041, 2298, 2826, 3447, 4082, 4596, 4979, 5652, 6123, 6894, 8164, 9958, 12246, 13788, 14937, 18369, 19916, 24492, 29874, 36738, 44811, 59748, 60131, 73476, 89622, 120262, 179244, 180393, 240524, 360786, 541179, 721572, 781703, 1082358, 1563406, 2164716, 2345109, 3126812, 4690218, 7035327, 9380436, 14070654, 28141308]

約数ペア:

[(1, 28141308), (2, 14070654), (3, 9380436), (4, 7035327), (6, 4690218), (9, 3126812), (12, 2345109), (13, 2164716), (18, 1563406), (26, 1082358), (36, 781703), (39, 721572), (52, 541179), (78, 360786), (117, 240524), (156, 180393), (157, 179244), (234, 120262), (314, 89622), (383, 73476), (468, 60131), (471, 59748), (628, 44811), (766, 36738), (942, 29874), (1149, 24492), (1413, 19916), (1532, 18369), (1884, 14937), (2041, 13788), (2298, 12246), (2826, 9958), (3447, 8164), (4082, 6894), (4596, 6123), (4979, 5652)]