71755520

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1001

約数の個数: 72

約数和(自身を含む): 174884640

約数和(自身を除く): 103129120

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, 919, 976, 1220, 1280, 1838, 1952, 2440, 3676, 3904, 4595, 4880, 7352, 7808, 9190, 9760, 14704, 15616, 18380, 19520, 29408, 36760, 39040, 56059, 58816, 73520, 78080, 112118, 117632, 147040, 224236, 235264, 280295, 294080, 448472, 560590, 588160, 896944, 1121180, 1176320, 1793888, 2242360, 3587776, 4484720, 7175552, 8969440, 14351104, 17938880, 35877760, 71755520]

約数ペア:

[(1, 71755520), (2, 35877760), (4, 17938880), (5, 14351104), (8, 8969440), (10, 7175552), (16, 4484720), (20, 3587776), (32, 2242360), (40, 1793888), (61, 1176320), (64, 1121180), (80, 896944), (122, 588160), (128, 560590), (160, 448472), (244, 294080), (256, 280295), (305, 235264), (320, 224236), (488, 147040), (610, 117632), (640, 112118), (919, 78080), (976, 73520), (1220, 58816), (1280, 56059), (1838, 39040), (1952, 36760), (2440, 29408), (3676, 19520), (3904, 18380), (4595, 15616), (4880, 14704), (7352, 9760), (7808, 9190)]