255750488

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1531}}^1$

素因数の和:1720

約数の個数: 64

約数和(自身を含む): 580934400

約数和(自身を除く): 325183912

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 157, 266, 314, 532, 628, 1064, 1099, 1256, 1531, 2198, 2983, 3062, 4396, 5966, 6124, 8792, 10717, 11932, 12248, 20881, 21434, 23864, 29089, 41762, 42868, 58178, 83524, 85736, 116356, 167048, 203623, 232712, 240367, 407246, 480734, 814492, 961468, 1628984, 1682569, 1922936, 3365138, 4566973, 6730276, 9133946, 13460552, 18267892, 31968811, 36535784, 63937622, 127875244, 255750488]

約数ペア:

[(1, 255750488), (2, 127875244), (4, 63937622), (7, 36535784), (8, 31968811), (14, 18267892), (19, 13460552), (28, 9133946), (38, 6730276), (56, 4566973), (76, 3365138), (133, 1922936), (152, 1682569), (157, 1628984), (266, 961468), (314, 814492), (532, 480734), (628, 407246), (1064, 240367), (1099, 232712), (1256, 203623), (1531, 167048), (2198, 116356), (2983, 85736), (3062, 83524), (4396, 58178), (5966, 42868), (6124, 41762), (8792, 29089), (10717, 23864), (11932, 21434), (12248, 20881)]