20686952156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{77383}}^1$

素因数の和:77550

約数の個数: 48

約数和(自身を含む): 40132580544

約数和(自身を除く): 19445628388

約数列:

[1, 2, 4, 13, 26, 52, 53, 97, 106, 194, 212, 388, 689, 1261, 1378, 2522, 2756, 5044, 5141, 10282, 20564, 66833, 77383, 133666, 154766, 267332, 309532, 1005979, 2011958, 4023916, 4101299, 7506151, 8202598, 15012302, 16405196, 30024604, 53316887, 97579963, 106633774, 195159926, 213267548, 390319852, 397826003, 795652006, 1591304012, 5171738039, 10343476078, 20686952156]

約数ペア:

[(1, 20686952156), (2, 10343476078), (4, 5171738039), (13, 1591304012), (26, 795652006), (52, 397826003), (53, 390319852), (97, 213267548), (106, 195159926), (194, 106633774), (212, 97579963), (388, 53316887), (689, 30024604), (1261, 16405196), (1378, 15012302), (2522, 8202598), (2756, 7506151), (5044, 4101299), (5141, 4023916), (10282, 2011958), (20564, 1005979), (66833, 309532), (77383, 267332), (133666, 154766)]