145025720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{517949}}^1$

素因数の和:517967

約数の個数: 32

約数和(自身を含む): 372924000

約数和(自身を除く): 227898280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 517949, 1035898, 2071796, 2589745, 3625643, 4143592, 5179490, 7251286, 10358980, 14502572, 18128215, 20717960, 29005144, 36256430, 72512860, 145025720]

約数ペア:

[(1, 145025720), (2, 72512860), (4, 36256430), (5, 29005144), (7, 20717960), (8, 18128215), (10, 14502572), (14, 10358980), (20, 7251286), (28, 5179490), (35, 4143592), (40, 3625643), (56, 2589745), (70, 2071796), (140, 1035898), (280, 517949)]