18191531950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^2\times {\mathrm{5501}}^1$

素因数の和:5650

約数の個数: 72

約数和(自身を含む): 36237602520

約数和(自身を除く): 18046070570

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 59, 95, 118, 190, 295, 475, 590, 950, 1121, 1475, 2242, 2950, 3481, 5501, 5605, 6962, 11002, 11210, 17405, 27505, 28025, 34810, 55010, 56050, 66139, 87025, 104519, 132278, 137525, 174050, 209038, 275050, 324559, 330695, 522595, 649118, 661390, 1045190, 1622795, 1653475, 2612975, 3245590, 3306950, 5225950, 6166621, 8113975, 12333242, 16227950, 19148981, 30833105, 38297962, 61666210, 95744905, 154165525, 191489810, 308331050, 363830639, 478724525, 727661278, 957449050, 1819153195, 3638306390, 9095765975, 18191531950]

約数ペア:

[(1, 18191531950), (2, 9095765975), (5, 3638306390), (10, 1819153195), (19, 957449050), (25, 727661278), (38, 478724525), (50, 363830639), (59, 308331050), (95, 191489810), (118, 154165525), (190, 95744905), (295, 61666210), (475, 38297962), (590, 30833105), (950, 19148981), (1121, 16227950), (1475, 12333242), (2242, 8113975), (2950, 6166621), (3481, 5225950), (5501, 3306950), (5605, 3245590), (6962, 2612975), (11002, 1653475), (11210, 1622795), (17405, 1045190), (27505, 661390), (28025, 649118), (34810, 522595), (55010, 330695), (56050, 324559), (66139, 275050), (87025, 209038), (104519, 174050), (132278, 137525)]