71130880

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{911}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 173363904

約数和(自身を除く): 102233024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 911, 976, 1220, 1280, 1822, 1952, 2440, 3644, 3904, 4555, 4880, 7288, 7808, 9110, 9760, 14576, 15616, 18220, 19520, 29152, 36440, 39040, 55571, 58304, 72880, 78080, 111142, 116608, 145760, 222284, 233216, 277855, 291520, 444568, 555710, 583040, 889136, 1111420, 1166080, 1778272, 2222840, 3556544, 4445680, 7113088, 8891360, 14226176, 17782720, 35565440, 71130880]

約数ペア:

[(1, 71130880), (2, 35565440), (4, 17782720), (5, 14226176), (8, 8891360), (10, 7113088), (16, 4445680), (20, 3556544), (32, 2222840), (40, 1778272), (61, 1166080), (64, 1111420), (80, 889136), (122, 583040), (128, 555710), (160, 444568), (244, 291520), (256, 277855), (305, 233216), (320, 222284), (488, 145760), (610, 116608), (640, 111142), (911, 78080), (976, 72880), (1220, 58304), (1280, 55571), (1822, 39040), (1952, 36440), (2440, 29152), (3644, 19520), (3904, 18220), (4555, 15616), (4880, 14576), (7288, 9760), (7808, 9110)]