39144280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139801}}^1$

素因数の和:139819

約数の個数: 32

約数和(自身を含む): 100657440

約数和(自身を除く): 61513160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 139801, 279602, 559204, 699005, 978607, 1118408, 1398010, 1957214, 2796020, 3914428, 4893035, 5592040, 7828856, 9786070, 19572140, 39144280]

約数ペア:

[(1, 39144280), (2, 19572140), (4, 9786070), (5, 7828856), (7, 5592040), (8, 4893035), (10, 3914428), (14, 2796020), (20, 1957214), (28, 1398010), (35, 1118408), (40, 978607), (56, 699005), (70, 559204), (140, 279602), (280, 139801)]