7280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1$

素因数の和:33

約数の個数: 40

約数和(自身を含む): 20832

約数和(自身を除く): 13552

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280]

約数ペア:

[(1, 7280), (2, 3640), (4, 1820), (5, 1456), (7, 1040), (8, 910), (10, 728), (13, 560), (14, 520), (16, 455), (20, 364), (26, 280), (28, 260), (35, 208), (40, 182), (52, 140), (56, 130), (65, 112), (70, 104), (80, 91)]