201286820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2243}}^1$

素因数の和:2900

約数の個数: 48

約数和(自身を含む): 484057728

約数和(自身を除く): 282770908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 641, 1282, 2243, 2564, 3205, 4486, 4487, 6410, 8972, 8974, 11215, 12820, 15701, 17948, 22430, 22435, 31402, 44860, 44870, 62804, 78505, 89740, 157010, 314020, 1437763, 2875526, 5751052, 7188815, 10064341, 14377630, 20128682, 28755260, 40257364, 50321705, 100643410, 201286820]

約数ペア:

[(1, 201286820), (2, 100643410), (4, 50321705), (5, 40257364), (7, 28755260), (10, 20128682), (14, 14377630), (20, 10064341), (28, 7188815), (35, 5751052), (70, 2875526), (140, 1437763), (641, 314020), (1282, 157010), (2243, 89740), (2564, 78505), (3205, 62804), (4486, 44870), (4487, 44860), (6410, 31402), (8972, 22435), (8974, 22430), (11215, 17948), (12820, 15701)]