28976990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4019}}^1$

素因数の和:4136

約数の個数: 32

約数和(自身を含む): 60203520

約数和(自身を除く): 31226530

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 3605, 4019, 7210, 8038, 20095, 28133, 40190, 56266, 140665, 281330, 413957, 827914, 2069785, 2897699, 4139570, 5795398, 14488495, 28976990]

約数ペア:

[(1, 28976990), (2, 14488495), (5, 5795398), (7, 4139570), (10, 2897699), (14, 2069785), (35, 827914), (70, 413957), (103, 281330), (206, 140665), (515, 56266), (721, 40190), (1030, 28133), (1442, 20095), (3605, 8038), (4019, 7210)]