1900525825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{769}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 2793744800

約数和(自身を除く): 893218975

約数列:

[1, 5, 11, 19, 25, 43, 55, 95, 121, 209, 215, 275, 473, 475, 605, 769, 817, 1045, 1075, 2299, 2365, 3025, 3845, 4085, 5203, 5225, 8459, 8987, 11495, 11825, 14611, 19225, 20425, 26015, 33067, 42295, 44935, 57475, 73055, 93049, 98857, 130075, 160721, 165335, 211475, 224675, 363737, 365275, 465245, 494285, 628273, 803605, 826675, 1767931, 1818685, 2326225, 2471425, 3141365, 4001107, 4018025, 6911003, 8839655, 9093425, 15706825, 20005535, 34555015, 44198275, 76021033, 100027675, 172775075, 380105165, 1900525825]

約数ペア:

[(1, 1900525825), (5, 380105165), (11, 172775075), (19, 100027675), (25, 76021033), (43, 44198275), (55, 34555015), (95, 20005535), (121, 15706825), (209, 9093425), (215, 8839655), (275, 6911003), (473, 4018025), (475, 4001107), (605, 3141365), (769, 2471425), (817, 2326225), (1045, 1818685), (1075, 1767931), (2299, 826675), (2365, 803605), (3025, 628273), (3845, 494285), (4085, 465245), (5203, 365275), (5225, 363737), (8459, 224675), (8987, 211475), (11495, 165335), (11825, 160721), (14611, 130075), (19225, 98857), (20425, 93049), (26015, 73055), (33067, 57475), (42295, 44935)]