78818560

素因数分解:

$2^8\times 5^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 190582560

約数和(自身を除く): 111764000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 443, 556, 640, 695, 886, 1112, 1280, 1390, 1772, 2215, 2224, 2780, 3544, 4430, 4448, 5560, 7088, 8860, 8896, 11120, 14176, 17720, 17792, 22240, 28352, 35440, 35584, 44480, 56704, 61577, 70880, 88960, 113408, 123154, 141760, 177920, 246308, 283520, 307885, 492616, 567040, 615770, 985232, 1231540, 1970464, 2463080, 3940928, 4926160, 7881856, 9852320, 15763712, 19704640, 39409280, 78818560]

約数ペア:

[(1, 78818560), (2, 39409280), (4, 19704640), (5, 15763712), (8, 9852320), (10, 7881856), (16, 4926160), (20, 3940928), (32, 2463080), (40, 1970464), (64, 1231540), (80, 985232), (128, 615770), (139, 567040), (160, 492616), (256, 307885), (278, 283520), (320, 246308), (443, 177920), (556, 141760), (640, 123154), (695, 113408), (886, 88960), (1112, 70880), (1280, 61577), (1390, 56704), (1772, 44480), (2215, 35584), (2224, 35440), (2780, 28352), (3544, 22240), (4430, 17792), (4448, 17720), (5560, 14176), (7088, 11120), (8860, 8896)]