19009898492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1\times {\mathrm{2423}}^1$

素因数の和:2659

約数の個数: 72

約数和(自身を含む): 37270483488

約数和(自身を除く): 18260584996

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 157, 314, 403, 628, 806, 961, 1612, 1922, 2041, 2423, 3844, 4082, 4846, 4867, 8164, 9692, 9734, 12493, 19468, 24986, 31499, 49972, 62998, 63271, 75113, 125996, 126542, 150226, 150877, 253084, 300452, 301754, 380411, 603508, 760822, 976469, 1521644, 1952938, 1961401, 2328503, 3905876, 3922802, 4657006, 4945343, 7845604, 9314012, 9890686, 11792741, 19781372, 23585482, 30270539, 47170964, 60541078, 121082156, 153305633, 306611266, 365574971, 613222532, 731149942, 1462299884, 4752474623, 9504949246, 19009898492]

約数ペア:

[(1, 19009898492), (2, 9504949246), (4, 4752474623), (13, 1462299884), (26, 731149942), (31, 613222532), (52, 365574971), (62, 306611266), (124, 153305633), (157, 121082156), (314, 60541078), (403, 47170964), (628, 30270539), (806, 23585482), (961, 19781372), (1612, 11792741), (1922, 9890686), (2041, 9314012), (2423, 7845604), (3844, 4945343), (4082, 4657006), (4846, 3922802), (4867, 3905876), (8164, 2328503), (9692, 1961401), (9734, 1952938), (12493, 1521644), (19468, 976469), (24986, 760822), (31499, 603508), (49972, 380411), (62998, 301754), (63271, 300452), (75113, 253084), (125996, 150877), (126542, 150226)]