213549455

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 322237440

約数和(自身を除く): 108687985

約数列:

[1, 5, 7, 19, 35, 53, 73, 83, 95, 133, 265, 365, 371, 415, 511, 581, 665, 1007, 1387, 1577, 1855, 2555, 2905, 3869, 4399, 5035, 6059, 6935, 7049, 7885, 9709, 11039, 19345, 21995, 27083, 30295, 30793, 35245, 42413, 48545, 55195, 73511, 83581, 115121, 135415, 153965, 212065, 321127, 367555, 417905, 514577, 575605, 585067, 805847, 1605635, 2247889, 2572885, 2925335, 4029235, 6101413, 11239445, 30507065, 42709891, 213549455]

約数ペア:

[(1, 213549455), (5, 42709891), (7, 30507065), (19, 11239445), (35, 6101413), (53, 4029235), (73, 2925335), (83, 2572885), (95, 2247889), (133, 1605635), (265, 805847), (365, 585067), (371, 575605), (415, 514577), (511, 417905), (581, 367555), (665, 321127), (1007, 212065), (1387, 153965), (1577, 135415), (1855, 115121), (2555, 83581), (2905, 73511), (3869, 55195), (4399, 48545), (5035, 42413), (6059, 35245), (6935, 30793), (7049, 30295), (7885, 27083), (9709, 21995), (11039, 19345)]