1969139725

素因数分解:

$5^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 2917500768

約数和(自身を除く): 948361043

約数列:

[1, 5, 7, 25, 35, 49, 83, 107, 175, 181, 245, 415, 535, 581, 749, 905, 1225, 1267, 2075, 2675, 2905, 3745, 4067, 4525, 5243, 6335, 8869, 8881, 14525, 15023, 18725, 19367, 20335, 26215, 31675, 44345, 44405, 62167, 75115, 96835, 101675, 105161, 131075, 135569, 221725, 222025, 310835, 375575, 435169, 484175, 525805, 677845, 736127, 948983, 1554175, 1607461, 2175845, 2629025, 3389225, 3680635, 4744915, 8037305, 10879225, 11252227, 18403175, 23724575, 40186525, 56261135, 78765589, 281305675, 393827945, 1969139725]

約数ペア:

[(1, 1969139725), (5, 393827945), (7, 281305675), (25, 78765589), (35, 56261135), (49, 40186525), (83, 23724575), (107, 18403175), (175, 11252227), (181, 10879225), (245, 8037305), (415, 4744915), (535, 3680635), (581, 3389225), (749, 2629025), (905, 2175845), (1225, 1607461), (1267, 1554175), (2075, 948983), (2675, 736127), (2905, 677845), (3745, 525805), (4067, 484175), (4525, 435169), (5243, 375575), (6335, 310835), (8869, 222025), (8881, 221725), (14525, 135569), (15023, 131075), (18725, 105161), (19367, 101675), (20335, 96835), (26215, 75115), (31675, 62167), (44345, 44405)]