257013.0000000

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 8213760

約数和(自身を除く): 3868485

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 229, 253, 275, 345, 575, 687, 759, 825, 1145, 1265, 1725, 2519, 3435, 3795, 5267, 5725, 6325, 7557, 12595, 15801, 17175, 18975, 26335, 37785, 57937, 62975, 79005, 131675, 173811, 188925, 289685, 395025, 869055, 1448425, 4345275]

約数ペア:

[(1, 4345275), (3, 1448425), (5, 869055), (11, 395025), (15, 289685), (23, 188925), (25, 173811), (33, 131675), (55, 79005), (69, 62975), (75, 57937), (115, 37785), (165, 26335), (229, 18975), (253, 17175), (275, 15801), (345, 12595), (575, 7557), (687, 6325), (759, 5725), (825, 5267), (1145, 3795), (1265, 3435), (1725, 2519)]