30490040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108893}}^1$

素因数の和:108911

約数の個数: 32

約数和(自身を含む): 78403680

約数和(自身を除く): 47913640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108893, 217786, 435572, 544465, 762251, 871144, 1088930, 1524502, 2177860, 3049004, 3811255, 4355720, 6098008, 7622510, 15245020, 30490040]

約数ペア:

[(1, 30490040), (2, 15245020), (4, 7622510), (5, 6098008), (7, 4355720), (8, 3811255), (10, 3049004), (14, 2177860), (20, 1524502), (28, 1088930), (35, 871144), (40, 762251), (56, 544465), (70, 435572), (140, 217786), (280, 108893)]