19680675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1$

素因数の和:2012

約数の個数: 48

約数和(自身を含む): 39164160

約数和(自身を除く): 19483485

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1973, 1995, 3325, 5919, 9865, 9975, 13811, 29595, 37487, 41433, 49325, 69055, 112461, 147975, 187435, 207165, 262409, 345275, 562305, 787227, 937175, 1035825, 1312045, 2811525, 3936135, 6560225, 19680675]

約数ペア:

[(1, 19680675), (3, 6560225), (5, 3936135), (7, 2811525), (15, 1312045), (19, 1035825), (21, 937175), (25, 787227), (35, 562305), (57, 345275), (75, 262409), (95, 207165), (105, 187435), (133, 147975), (175, 112461), (285, 69055), (399, 49325), (475, 41433), (525, 37487), (665, 29595), (1425, 13811), (1973, 9975), (1995, 9865), (3325, 5919)]