30638440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109423}}^1$

素因数の和:109441

約数の個数: 32

約数和(自身を含む): 78785280

約数和(自身を除く): 48146840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 109423, 218846, 437692, 547115, 765961, 875384, 1094230, 1531922, 2188460, 3063844, 3829805, 4376920, 6127688, 7659610, 15319220, 30638440]

約数ペア:

[(1, 30638440), (2, 15319220), (4, 7659610), (5, 6127688), (7, 4376920), (8, 3829805), (10, 3063844), (14, 2188460), (20, 1531922), (28, 1094230), (35, 875384), (40, 765961), (56, 547115), (70, 437692), (140, 218846), (280, 109423)]