51990225

素因数分解:

$3^1\times 5^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:124

約数の個数: 96

約数和(自身を含む): 104755200

約数和(自身を除く): 52764975

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 47, 49, 75, 105, 129, 141, 147, 175, 215, 235, 245, 301, 329, 343, 525, 645, 705, 735, 903, 987, 1029, 1075, 1175, 1225, 1505, 1645, 1715, 2021, 2107, 2303, 3225, 3525, 3675, 4515, 4935, 5145, 6063, 6321, 6909, 7525, 8225, 8575, 10105, 10535, 11515, 14147, 14749, 16121, 22575, 24675, 25725, 30315, 31605, 34545, 42441, 44247, 48363, 50525, 52675, 57575, 70735, 73745, 80605, 99029, 151575, 158025, 172725, 212205, 221235, 241815, 297087, 353675, 368725, 403025, 495145, 693203, 1061025, 1106175, 1209075, 1485435, 2079609, 2475725, 3466015, 7427175, 10398045, 17330075, 51990225]

約数ペア:

[(1, 51990225), (3, 17330075), (5, 10398045), (7, 7427175), (15, 3466015), (21, 2475725), (25, 2079609), (35, 1485435), (43, 1209075), (47, 1106175), (49, 1061025), (75, 693203), (105, 495145), (129, 403025), (141, 368725), (147, 353675), (175, 297087), (215, 241815), (235, 221235), (245, 212205), (301, 172725), (329, 158025), (343, 151575), (525, 99029), (645, 80605), (705, 73745), (735, 70735), (903, 57575), (987, 52675), (1029, 50525), (1075, 48363), (1175, 44247), (1225, 42441), (1505, 34545), (1645, 31605), (1715, 30315), (2021, 25725), (2107, 24675), (2303, 22575), (3225, 16121), (3525, 14749), (3675, 14147), (4515, 11515), (4935, 10535), (5145, 10105), (6063, 8575), (6321, 8225), (6909, 7525)]