257206712

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 561254400

約数和(自身を除く): 304047688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 173, 191, 278, 346, 382, 556, 692, 764, 973, 1112, 1211, 1337, 1384, 1528, 1946, 2422, 2674, 3892, 4844, 5348, 7784, 9688, 10696, 24047, 26549, 33043, 48094, 53098, 66086, 96188, 106196, 132172, 168329, 185843, 192376, 212392, 231301, 264344, 336658, 371686, 462602, 673316, 743372, 925204, 1346632, 1486744, 1850408, 4592977, 9185954, 18371908, 32150839, 36743816, 64301678, 128603356, 257206712]

約数ペア:

[(1, 257206712), (2, 128603356), (4, 64301678), (7, 36743816), (8, 32150839), (14, 18371908), (28, 9185954), (56, 4592977), (139, 1850408), (173, 1486744), (191, 1346632), (278, 925204), (346, 743372), (382, 673316), (556, 462602), (692, 371686), (764, 336658), (973, 264344), (1112, 231301), (1211, 212392), (1337, 192376), (1384, 185843), (1528, 168329), (1946, 132172), (2422, 106196), (2674, 96188), (3892, 66086), (4844, 53098), (5348, 48094), (7784, 33043), (9688, 26549), (10696, 24047)]