28138140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{701}}^1$

素因数の和:939

約数の個数: 72

約数和(自身を含む): 85857408

約数和(自身を除く): 57719268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 701, 892, 1115, 1338, 1402, 2007, 2103, 2230, 2676, 2804, 3345, 3505, 4014, 4206, 4460, 6309, 6690, 7010, 8028, 8412, 10035, 10515, 12618, 13380, 14020, 20070, 21030, 25236, 31545, 40140, 42060, 63090, 126180, 156323, 312646, 468969, 625292, 781615, 937938, 1406907, 1563230, 1875876, 2344845, 2813814, 3126460, 4689690, 5627628, 7034535, 9379380, 14069070, 28138140]

約数ペア:

[(1, 28138140), (2, 14069070), (3, 9379380), (4, 7034535), (5, 5627628), (6, 4689690), (9, 3126460), (10, 2813814), (12, 2344845), (15, 1875876), (18, 1563230), (20, 1406907), (30, 937938), (36, 781615), (45, 625292), (60, 468969), (90, 312646), (180, 156323), (223, 126180), (446, 63090), (669, 42060), (701, 40140), (892, 31545), (1115, 25236), (1338, 21030), (1402, 20070), (2007, 14020), (2103, 13380), (2230, 12618), (2676, 10515), (2804, 10035), (3345, 8412), (3505, 8028), (4014, 7010), (4206, 6690), (4460, 6309)]