28531020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67931}}^1$

素因数の和:67950

約数の個数: 48

約数和(自身を含む): 91300608

約数和(自身を除く): 62769588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67931, 135862, 203793, 271724, 339655, 407586, 475517, 679310, 815172, 951034, 1018965, 1358620, 1426551, 1902068, 2037930, 2377585, 2853102, 4075860, 4755170, 5706204, 7132755, 9510340, 14265510, 28531020]

約数ペア:

[(1, 28531020), (2, 14265510), (3, 9510340), (4, 7132755), (5, 5706204), (6, 4755170), (7, 4075860), (10, 2853102), (12, 2377585), (14, 2037930), (15, 1902068), (20, 1426551), (21, 1358620), (28, 1018965), (30, 951034), (35, 815172), (42, 679310), (60, 475517), (70, 407586), (84, 339655), (105, 271724), (140, 203793), (210, 135862), (420, 67931)]