811090980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{643723}}^1$

素因数の和:643745

約数の個数: 72

約数和(自身を含む): 2811786432

約数和(自身を除く): 2000695452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 643723, 1287446, 1931169, 2574892, 3218615, 3862338, 4506061, 5793507, 6437230, 7724676, 9012122, 9655845, 11587014, 12874460, 13518183, 18024244, 19311690, 22530305, 23174028, 27036366, 28967535, 38623380, 40554549, 45060610, 54072732, 57935070, 67590915, 81109098, 90121220, 115870140, 135181830, 162218196, 202772745, 270363660, 405545490, 811090980]

約数ペア:

[(1, 811090980), (2, 405545490), (3, 270363660), (4, 202772745), (5, 162218196), (6, 135181830), (7, 115870140), (9, 90121220), (10, 81109098), (12, 67590915), (14, 57935070), (15, 54072732), (18, 45060610), (20, 40554549), (21, 38623380), (28, 28967535), (30, 27036366), (35, 23174028), (36, 22530305), (42, 19311690), (45, 18024244), (60, 13518183), (63, 12874460), (70, 11587014), (84, 9655845), (90, 9012122), (105, 7724676), (126, 6437230), (140, 5793507), (180, 4506061), (210, 3862338), (252, 3218615), (315, 2574892), (420, 1931169), (630, 1287446), (1260, 643723)]