201765890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 388922688

約数和(自身を除く): 187156798

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 529, 887, 989, 1058, 1774, 1978, 2645, 4435, 4945, 5290, 8870, 9890, 20401, 22747, 38141, 40802, 45494, 76282, 102005, 113735, 190705, 204010, 227470, 381410, 469223, 877243, 938446, 1754486, 2346115, 4386215, 4692230, 8772430, 20176589, 40353178, 100882945, 201765890]

約数ペア:

[(1, 201765890), (2, 100882945), (5, 40353178), (10, 20176589), (23, 8772430), (43, 4692230), (46, 4386215), (86, 2346115), (115, 1754486), (215, 938446), (230, 877243), (430, 469223), (529, 381410), (887, 227470), (989, 204010), (1058, 190705), (1774, 113735), (1978, 102005), (2645, 76282), (4435, 45494), (4945, 40802), (5290, 38141), (8870, 22747), (9890, 20401)]