30897040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20327}}^1$

素因数の和:20359

約数の個数: 40

約数和(自身を含む): 75620160

約数和(自身を除く): 44723120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20327, 40654, 81308, 101635, 162616, 203270, 325232, 386213, 406540, 772426, 813080, 1544852, 1626160, 1931065, 3089704, 3862130, 6179408, 7724260, 15448520, 30897040]

約数ペア:

[(1, 30897040), (2, 15448520), (4, 7724260), (5, 6179408), (8, 3862130), (10, 3089704), (16, 1931065), (19, 1626160), (20, 1544852), (38, 813080), (40, 772426), (76, 406540), (80, 386213), (95, 325232), (152, 203270), (190, 162616), (304, 101635), (380, 81308), (760, 40654), (1520, 20327)]