697339990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{42703}}^1$

素因数の和:42804

約数の個数: 32

約数和(自身を含む): 1328265216

約数和(自身を除く): 630925226

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1633, 3266, 8165, 16330, 42703, 85406, 213515, 427030, 982169, 1964338, 3031913, 4910845, 6063826, 9821690, 15159565, 30319130, 69733999, 139467998, 348669995, 697339990]

約数ペア:

[(1, 697339990), (2, 348669995), (5, 139467998), (10, 69733999), (23, 30319130), (46, 15159565), (71, 9821690), (115, 6063826), (142, 4910845), (230, 3031913), (355, 1964338), (710, 982169), (1633, 427030), (3266, 213515), (8165, 85406), (16330, 42703)]