19012730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:875

約数の個数: 48

約数和(自身を含む): 39644640

約数和(自身を除く): 20631910

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 418, 605, 827, 1045, 1210, 1654, 2090, 2299, 4135, 4598, 8270, 9097, 11495, 15713, 18194, 22990, 31426, 45485, 78565, 90970, 100067, 157130, 172843, 200134, 345686, 500335, 864215, 1000670, 1728430, 1901273, 3802546, 9506365, 19012730]

約数ペア:

[(1, 19012730), (2, 9506365), (5, 3802546), (10, 1901273), (11, 1728430), (19, 1000670), (22, 864215), (38, 500335), (55, 345686), (95, 200134), (110, 172843), (121, 157130), (190, 100067), (209, 90970), (242, 78565), (418, 45485), (605, 31426), (827, 22990), (1045, 18194), (1210, 15713), (1654, 11495), (2090, 9097), (2299, 8270), (4135, 4598)]