20008974400

素因数分解:

$2^6\times 5^2\times {\mathrm{1181}}^1\times {\mathrm{10589}}^1$

素因数の和:11792

約数の個数: 84

約数和(自身を含む): 49280925060

約数和(自身を除く): 29271950660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1181, 1600, 2362, 4724, 5905, 9448, 10589, 11810, 18896, 21178, 23620, 29525, 37792, 42356, 47240, 52945, 59050, 75584, 84712, 94480, 105890, 118100, 169424, 188960, 211780, 236200, 264725, 338848, 377920, 423560, 472400, 529450, 677696, 847120, 944800, 1058900, 1694240, 1889600, 2117800, 3388480, 4235600, 8471200, 12505609, 16942400, 25011218, 50022436, 62528045, 100044872, 125056090, 200089744, 250112180, 312640225, 400179488, 500224360, 625280450, 800358976, 1000448720, 1250560900, 2000897440, 2501121800, 4001794880, 5002243600, 10004487200, 20008974400]

約数ペア:

[(1, 20008974400), (2, 10004487200), (4, 5002243600), (5, 4001794880), (8, 2501121800), (10, 2000897440), (16, 1250560900), (20, 1000448720), (25, 800358976), (32, 625280450), (40, 500224360), (50, 400179488), (64, 312640225), (80, 250112180), (100, 200089744), (160, 125056090), (200, 100044872), (320, 62528045), (400, 50022436), (800, 25011218), (1181, 16942400), (1600, 12505609), (2362, 8471200), (4724, 4235600), (5905, 3388480), (9448, 2117800), (10589, 1889600), (11810, 1694240), (18896, 1058900), (21178, 944800), (23620, 847120), (29525, 677696), (37792, 529450), (42356, 472400), (47240, 423560), (52945, 377920), (59050, 338848), (75584, 264725), (84712, 236200), (94480, 211780), (105890, 188960), (118100, 169424)]