256908380

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{877}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 549304896

約数和(自身を除く): 292396516

約数列:

[1, 2, 4, 5, 10, 20, 97, 151, 194, 302, 388, 485, 604, 755, 877, 970, 1510, 1754, 1940, 3020, 3508, 4385, 8770, 14647, 17540, 29294, 58588, 73235, 85069, 132427, 146470, 170138, 264854, 292940, 340276, 425345, 529708, 662135, 850690, 1324270, 1701380, 2648540, 12845419, 25690838, 51381676, 64227095, 128454190, 256908380]

約数ペア:

[(1, 256908380), (2, 128454190), (4, 64227095), (5, 51381676), (10, 25690838), (20, 12845419), (97, 2648540), (151, 1701380), (194, 1324270), (302, 850690), (388, 662135), (485, 529708), (604, 425345), (755, 340276), (877, 292940), (970, 264854), (1510, 170138), (1754, 146470), (1940, 132427), (3020, 85069), (3508, 73235), (4385, 58588), (8770, 29294), (14647, 17540)]