28013125

素因数分解:

$5^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 42236480

約数和(自身を除く): 14223355

約数列:

[1, 5, 7, 19, 25, 35, 95, 125, 133, 175, 337, 475, 625, 665, 875, 1685, 2359, 2375, 3325, 4375, 6403, 8425, 11795, 11875, 16625, 32015, 42125, 44821, 58975, 83125, 160075, 210625, 224105, 294875, 800375, 1120525, 1474375, 4001875, 5602625, 28013125]

約数ペア:

[(1, 28013125), (5, 5602625), (7, 4001875), (19, 1474375), (25, 1120525), (35, 800375), (95, 294875), (125, 224105), (133, 210625), (175, 160075), (337, 83125), (475, 58975), (625, 44821), (665, 42125), (875, 32015), (1685, 16625), (2359, 11875), (2375, 11795), (3325, 8425), (4375, 6403)]