320804540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{18043}}^1$

素因数の和:18186

約数の個数: 48

約数和(自身を含む): 776036352

約数和(自身を除く): 455231812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 4445, 8890, 17780, 18043, 36086, 72172, 90215, 126301, 180430, 252602, 360860, 505204, 631505, 1263010, 2291461, 2526020, 4582922, 9165844, 11457305, 16040227, 22914610, 32080454, 45829220, 64160908, 80201135, 160402270, 320804540]

約数ペア:

[(1, 320804540), (2, 160402270), (4, 80201135), (5, 64160908), (7, 45829220), (10, 32080454), (14, 22914610), (20, 16040227), (28, 11457305), (35, 9165844), (70, 4582922), (127, 2526020), (140, 2291461), (254, 1263010), (508, 631505), (635, 505204), (889, 360860), (1270, 252602), (1778, 180430), (2540, 126301), (3556, 90215), (4445, 72172), (8890, 36086), (17780, 18043)]