228208820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2543}}^1$

素因数の和:3200

約数の個数: 48

約数和(自身を含む): 548771328

約数和(自身を除く): 320562508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 641, 1282, 2543, 2564, 3205, 4487, 5086, 6410, 8974, 10172, 12715, 12820, 17801, 17948, 22435, 25430, 35602, 44870, 50860, 71204, 89005, 89740, 178010, 356020, 1630063, 3260126, 6520252, 8150315, 11410441, 16300630, 22820882, 32601260, 45641764, 57052205, 114104410, 228208820]

約数ペア:

[(1, 228208820), (2, 114104410), (4, 57052205), (5, 45641764), (7, 32601260), (10, 22820882), (14, 16300630), (20, 11410441), (28, 8150315), (35, 6520252), (70, 3260126), (140, 1630063), (641, 356020), (1282, 178010), (2543, 89740), (2564, 89005), (3205, 71204), (4487, 50860), (5086, 44870), (6410, 35602), (8974, 25430), (10172, 22435), (12715, 17948), (12820, 17801)]