1800869805

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{857}}^1\times {\mathrm{953}}^1$

素因数の和:1835

約数の個数: 72

約数和(自身を含む): 3639193272

約数和(自身を除く): 1838323467

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 857, 953, 2205, 2571, 2859, 4285, 4765, 5999, 6671, 7713, 8577, 12855, 14295, 17997, 20013, 29995, 33355, 38565, 41993, 42885, 46697, 53991, 60039, 89985, 100065, 125979, 140091, 209965, 233485, 269955, 300195, 377937, 420273, 629895, 700455, 816721, 1889685, 2101365, 2450163, 4083605, 5717047, 7350489, 12250815, 17151141, 28585235, 36752445, 40019329, 51453423, 85755705, 120057987, 200096645, 257267115, 360173961, 600289935, 1800869805]

約数ペア:

[(1, 1800869805), (3, 600289935), (5, 360173961), (7, 257267115), (9, 200096645), (15, 120057987), (21, 85755705), (35, 51453423), (45, 40019329), (49, 36752445), (63, 28585235), (105, 17151141), (147, 12250815), (245, 7350489), (315, 5717047), (441, 4083605), (735, 2450163), (857, 2101365), (953, 1889685), (2205, 816721), (2571, 700455), (2859, 629895), (4285, 420273), (4765, 377937), (5999, 300195), (6671, 269955), (7713, 233485), (8577, 209965), (12855, 140091), (14295, 125979), (17997, 100065), (20013, 89985), (29995, 60039), (33355, 53991), (38565, 46697), (41993, 42885)]