30940280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{110501}}^1$

素因数の和:110519

約数の個数: 32

約数和(自身を含む): 79561440

約数和(自身を除く): 48621160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 110501, 221002, 442004, 552505, 773507, 884008, 1105010, 1547014, 2210020, 3094028, 3867535, 4420040, 6188056, 7735070, 15470140, 30940280]

約数ペア:

[(1, 30940280), (2, 15470140), (4, 7735070), (5, 6188056), (7, 4420040), (8, 3867535), (10, 3094028), (14, 2210020), (20, 1547014), (28, 1105010), (35, 884008), (40, 773507), (56, 552505), (70, 442004), (140, 221002), (280, 110501)]