161816920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{212917}}^1$

素因数の和:212947

約数の個数: 32

約数和(自身を含む): 383252400

約数和(自身を除く): 221435480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 212917, 425834, 851668, 1064585, 1703336, 2129170, 4045423, 4258340, 8090846, 8516680, 16181692, 20227115, 32363384, 40454230, 80908460, 161816920]

約数ペア:

[(1, 161816920), (2, 80908460), (4, 40454230), (5, 32363384), (8, 20227115), (10, 16181692), (19, 8516680), (20, 8090846), (38, 4258340), (40, 4045423), (76, 2129170), (95, 1703336), (152, 1064585), (190, 851668), (380, 425834), (760, 212917)]