28278460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10631}}^1$

素因数の和:10666

約数の個数: 48

約数和(自身を含む): 71447040

約数和(自身を除く): 43168580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 10631, 21262, 42524, 53155, 74417, 106310, 148834, 201989, 212620, 297668, 372085, 403978, 744170, 807956, 1009945, 1413923, 1488340, 2019890, 2827846, 4039780, 5655692, 7069615, 14139230, 28278460]

約数ペア:

[(1, 28278460), (2, 14139230), (4, 7069615), (5, 5655692), (7, 4039780), (10, 2827846), (14, 2019890), (19, 1488340), (20, 1413923), (28, 1009945), (35, 807956), (38, 744170), (70, 403978), (76, 372085), (95, 297668), (133, 212620), (140, 201989), (190, 148834), (266, 106310), (380, 74417), (532, 53155), (665, 42524), (1330, 21262), (2660, 10631)]