28981540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29573}}^1$

素因数の和:29596

約数の個数: 36

約数和(自身を含む): 70800156

約数和(自身を除く): 41818616

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 29573, 59146, 118292, 147865, 207011, 295730, 414022, 591460, 828044, 1035055, 1449077, 2070110, 2898154, 4140220, 5796308, 7245385, 14490770, 28981540]

約数ペア:

[(1, 28981540), (2, 14490770), (4, 7245385), (5, 5796308), (7, 4140220), (10, 2898154), (14, 2070110), (20, 1449077), (28, 1035055), (35, 828044), (49, 591460), (70, 414022), (98, 295730), (140, 207011), (196, 147865), (245, 118292), (490, 59146), (980, 29573)]