25142420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 55520640

約数和(自身を除く): 30378220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 647, 670, 1294, 1340, 1943, 2588, 3235, 3886, 6470, 7772, 9715, 12940, 18763, 19430, 37526, 38860, 43349, 75052, 86698, 93815, 173396, 187630, 216745, 375260, 433490, 866980, 1257121, 2514242, 5028484, 6285605, 12571210, 25142420]

約数ペア:

[(1, 25142420), (2, 12571210), (4, 6285605), (5, 5028484), (10, 2514242), (20, 1257121), (29, 866980), (58, 433490), (67, 375260), (116, 216745), (134, 187630), (145, 173396), (268, 93815), (290, 86698), (335, 75052), (580, 43349), (647, 38860), (670, 37526), (1294, 19430), (1340, 18763), (1943, 12940), (2588, 9715), (3235, 7772), (3886, 6470)]