19555940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{971}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 24533980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 971, 1007, 1060, 1942, 2014, 3884, 4028, 4855, 5035, 9710, 10070, 18449, 19420, 20140, 36898, 51463, 73796, 92245, 102926, 184490, 205852, 257315, 368980, 514630, 977797, 1029260, 1955594, 3911188, 4888985, 9777970, 19555940]

約数ペア:

[(1, 19555940), (2, 9777970), (4, 4888985), (5, 3911188), (10, 1955594), (19, 1029260), (20, 977797), (38, 514630), (53, 368980), (76, 257315), (95, 205852), (106, 184490), (190, 102926), (212, 92245), (265, 73796), (380, 51463), (530, 36898), (971, 20140), (1007, 19420), (1060, 18449), (1942, 10070), (2014, 9710), (3884, 5035), (4028, 4855)]