1639841284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20807}}^1$

素因数の和:20908

約数の個数: 48

約数和(自身を含む): 3251041920

約数和(自身を除く): 1611200636

約数列:

[1, 2, 4, 17, 19, 34, 38, 61, 68, 76, 122, 244, 323, 646, 1037, 1159, 1292, 2074, 2318, 4148, 4636, 19703, 20807, 39406, 41614, 78812, 83228, 353719, 395333, 707438, 790666, 1269227, 1414876, 1581332, 2538454, 5076908, 6720661, 13441322, 21576859, 24115313, 26882644, 43153718, 48230626, 86307436, 96461252, 409960321, 819920642, 1639841284]

約数ペア:

[(1, 1639841284), (2, 819920642), (4, 409960321), (17, 96461252), (19, 86307436), (34, 48230626), (38, 43153718), (61, 26882644), (68, 24115313), (76, 21576859), (122, 13441322), (244, 6720661), (323, 5076908), (646, 2538454), (1037, 1581332), (1159, 1414876), (1292, 1269227), (2074, 790666), (2318, 707438), (4148, 395333), (4636, 353719), (19703, 83228), (20807, 78812), (39406, 41614)]