19898032

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 49711104

約数和(自身を除く): 29813072

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 176, 217, 248, 308, 341, 434, 496, 521, 616, 682, 868, 1042, 1232, 1364, 1736, 2084, 2387, 2728, 3472, 3647, 4168, 4774, 5456, 5731, 7294, 8336, 9548, 11462, 14588, 16151, 19096, 22924, 29176, 32302, 38192, 40117, 45848, 58352, 64604, 80234, 91696, 113057, 129208, 160468, 177661, 226114, 258416, 320936, 355322, 452228, 641872, 710644, 904456, 1243627, 1421288, 1808912, 2487254, 2842576, 4974508, 9949016, 19898032]

約数ペア:

[(1, 19898032), (2, 9949016), (4, 4974508), (7, 2842576), (8, 2487254), (11, 1808912), (14, 1421288), (16, 1243627), (22, 904456), (28, 710644), (31, 641872), (44, 452228), (56, 355322), (62, 320936), (77, 258416), (88, 226114), (112, 177661), (124, 160468), (154, 129208), (176, 113057), (217, 91696), (248, 80234), (308, 64604), (341, 58352), (434, 45848), (496, 40117), (521, 38192), (616, 32302), (682, 29176), (868, 22924), (1042, 19096), (1232, 16151), (1364, 14588), (1736, 11462), (2084, 9548), (2387, 8336), (2728, 7294), (3472, 5731), (3647, 5456), (4168, 4774)]