161738260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2711}}^1$

素因数の和:2896

約数の個数: 48

約数和(自身を含む): 359936640

約数和(自身を除く): 198198380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 157, 190, 314, 380, 628, 785, 1570, 2711, 2983, 3140, 5422, 5966, 10844, 11932, 13555, 14915, 27110, 29830, 51509, 54220, 59660, 103018, 206036, 257545, 425627, 515090, 851254, 1030180, 1702508, 2128135, 4256270, 8086913, 8512540, 16173826, 32347652, 40434565, 80869130, 161738260]

約数ペア:

[(1, 161738260), (2, 80869130), (4, 40434565), (5, 32347652), (10, 16173826), (19, 8512540), (20, 8086913), (38, 4256270), (76, 2128135), (95, 1702508), (157, 1030180), (190, 851254), (314, 515090), (380, 425627), (628, 257545), (785, 206036), (1570, 103018), (2711, 59660), (2983, 54220), (3140, 51509), (5422, 29830), (5966, 27110), (10844, 14915), (11932, 13555)]